g's bicycle were capable of generating a different alphabet for each one of its different states. So the state ([theta] = 0, C = 0) would correspond to, say, this substitution alphabet: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Q G U W B I Y T F K V N D O H E P X L Z R C A S J M but the state ([theta] = 180, C = 15) would correspond to this (different) one: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z B O R I X V G Y P F J M T C Q N H A Z U K L D S E W No two letters would be enciphered using the same substitution alphabet until, that is, the bicycle worked its way back around to the initial state ([theta] = 0, C = 0) and began to repeat the cycle. This means that it is a periodic polyalphabetic system. Now, if this machine had a short period, it would repeat itself frequently, and would therefore be useful, as an encryption system, only against kids in treehouses. The longer its period (the more relative primeness is built into it) the less frequently it cycles back to the same substitution alphabet, and the more secure it is. The three wheel Enigma is just that type of system (i.e., periodic polyalphabetic). Its wheels, like the drive train of Turing's bicycle, embody cycles within cycles. Its period is 17,576, which means that the substitution alphabet that enciphers the first letter of a message will not be used again until the 17,577th letter is reached. But with Shark the Germans have added a fourth wheel, bumping the period up to 456,976. The wheels are set in a different, randomly chosen starting position at the beginning of each message. Since the Germans' messages are never as long as 450,000 characters, the Enigma never reuses the same substitution alphabet in the course of a given message, which is why the Germans think it's so good. A flight of transport planes goes over them, probably headed for the aerodrome at Bedford. The planes make a weirdly musical diatonic hum, like bagpipes playing two drones at once. This reminds Lawrence of yet another phenomenon related to the bicycle wheel and the Enigma machine. "Do you know why airplanes sound the way they do?" he says. "No, come to think of it." Turing pulls his gas mask off again. His jaw has gone a bit slack and his eyes are darting from side to side. Lawrence has caught him out. "I noticed it at Pearl. Airplane engines are rotary," Lawrence says. "Consequently they must have an odd number of cylinders." "How does that follow?" "If the number were even, the cylinders would be directly opposed, a hundred and eighty degrees apart, and it wouldn't work out mechanically." "Why not?" "I forgot. It just wouldn't work out." Alan raises his eyebrows, clearly not convinced. "Something to do with cranks," Waterhouse ventures, feeling a little defensive. "I don't know that I agree," Alan says. "Just stipulate it think of it as a boundary condition," Waterhouse says. But Alan is already hard at work, he suspects, mentally designing a rotary aircraft engine with an even number of cylinders. "Anyway, if you look at them, they all have an odd number of cylinders," Lawrence continues. "So the exhaust noise combines with the propeller noise to produce that two tone sound." Alan climbs back onto his bicycle and they ride into the woods for some distance without any more talking. Actually, they have not been talking so much as mentioning certain ideas and then leaving the other to work through the implications. This is a highly efficient way to communicate; it eliminates much of the redundancy that Alan was complaining about in the case of FDR and Churchill. Waterhouse is thinking about cycles within cycles. He's already made up his mind that human society is one of these cycles within cycles things (1) and now he's trying to figure out whether it is like Turing's bicycle (works fine for a while, then suddenly the chain falls off, hence the occasional world war) or like an Enigma machine (grinds away incomprehensibly for a long time, then suddenly the wheels line up like a slot machine and everything is made plain in some sort of global epiphany or, if you prefer, apocalypse) or just like a rotary airplane engine (runs and runs and runs; nothing special happens; it just makes a lot of noise). "It's somewhere around . . . here!" Alan says, and violently brakes to a stop, just to chaff Lawrence, who has to turn his bicycle around, a chancy trick on such a narrow lane, and loop back. They lean their bicycles against trees and remove pieces of equipment from the baskets: dry cells, electronic breadboards, poles, a trenching tool, loops of wire. Alan looks about somewhat uncertainly and then strikes off into the woods. "I'm off to America soon, to work on this voice encryption problem at Bell Labs," Alan says. Lawrence laughs ruefully. "We're ships passing in the night, you and I." "We are passengers on ships passing in the night," Alan corrects him. "It is no accident. They need you precisely because I am leaving. I've been doing all of the 2701 work to this point." "It's Detachment 2702 now," Lawrence says. "Oh," Alan says, crestfallen. "You noticed." "It was reckless of you, Alan." "On the contrary!" Alan says. "What will Rudy think if he notices that, of all the units and divisions and detachments in the Allied order of battle, there is not a single one whose number happens to be the product of two primes?" "Well, that depends upon how common such numbers are compared to all of the other numbers, and on how many other numbers in the range are going unused . . ." Lawrence says, and begins to work out the first half of the problem. "Riemann Zeta function again. That thing pops up everywhere." "That's the spirit!" Alan says. "Simply take a rational and common sense approach. They are really quite pathetic." "Who?" "Here," Alan says, slowing to a stop and looking around at the trees, which to Lawrence look like all the other trees. "This looks familiar." He sits down on the bole of a windfall and begins to unpack electrical gear from his bag. Lawrence squats nearby and does the same. Lawrence does not know how the device works it is Alan's invention and so he acts in the role of surgical assistant, handing tools and supplies to the doctor as he puts the device together. The doctor is talking the entire time, and so he requests tools by staring at them fixedly and furrowing his brow. "They are well, who do you suppose? The fools who use all of the information that comes from Bletchley Park!" "Alan!" "Well, it is foolish! Like this Midway thing. That's a perfect example, isn't it?" "Well, I was happy that we won the battle," Lawrence says guardedly. "Don't you think it's a bit odd, a bit striking, a bit noticeable, that after all of Yamamoto's brilliant feints and deceptions and ruses, this Nimitz fellow knew exactly where to go looking for him? Out of the entire Pacific Ocean?" "All right," Lawrence says, "I was appalled. I wrote a paper about it. Probably the paper that got me into this mess with you." "Well, it's no better with us Brits," Alan says. "Really?" "You would be horrified at what we've been up to in the Mediterranean. It is a scandal. A crime. "What have we been up to?" Lawrence asks. "I say 'we' rather than 'you' because we are allies now." "Yes, yes," Alan says impatiently. "So they claim." He paused for a moment, tracing an electrical circuit with his finger, calculating inductances in his head. Finally, he continues: "Well, we've been sinking convoys, that's what. German convoys. We've been sinking them right and left." "Rommel's?" "Yes, exactly. The Germans put fuel and tanks and ammunition on ships in Naples and send them south. We go out and sink them. We sink nearly all of them, because we have broken the Italian C38m cipher and we know when they are leaving Naples. And lately we've been sinking just the very ones that are most crucial to Rommel's efforts, because we have also broken his Chaffinch cipher and we know which ones he is complaining loudest about not having." Turing snaps a toggle switch on his invention and a weird, looping squeal comes from a dusty black paper cone lashed onto the breadboard with twine. The cone is a speaker, apparently scavenged from a radio. There is a broomstick with a loop of stiff wire dangling from the end, and a wire running from that loop up the stick to the breadboard. He swings the broomstick around until the loop is dangling, like a lasso, in front of Lawrence's midsection. The speaker yelps. "Good. It's picking up your belt buckle," Alan says. He sets the contraption down in the leaves, gropes in several pockets, and finally pulls out a scrap of paper on which several lines of text have been written in block letters. Lawrence would recognize it anywhere: it is a decrypt worksheet. "What's that, Alan?" "I wrote out complete instructions and enciphered them, then hid them under a bridge in a benzedrine container," Alan says. "Last week I went and recovered the container and decyphered the instructions." He waves the paper in the air. "What encryption scheme did you use?" "One of my own devising. You are welcome to take a crack at it, if you like." "What made you decide it was time to dig this stuff up?" "It was nothing more than a hedge against invasion," Alan says. "Clearly, we're not going to be invaded now, not with you chaps in the war." "How much did you bury?" "Two silver bars, Lawrence, each with a value of some hundred and twenty five pounds. One of them should be very close to us." Alan stands up, pulls a compass out of his pocket, turns to face magnetic north, and squares his shoulders. Then he rotates a few degrees. "Can't remember whether I allowed for declination," he mumbles. "Right! In any case. One hundred paces north." And he strides off into the woods, followed by Lawrence, who has been given the job of carrying the metal detector. Just as Dr. Alan Turing can ride a bicycle and carry on a conversation while mentally counting the revolutions of the pedals, he can count paces and talk at the same time too. Unless he has lost count entirely, which seems just as possible. "If what you are saying is true," Lawrence says, "the jig must be up already. Rudy must have figured out that we've broken their codes." "An informal system has been in place, which might be thought of as a precursor to Detachment 2701, or 2702 or whatever we are calling it," Alan says. "When we want to sink a convoy, we send out an observation plane first. It is ostensibly an observation plane. Of course, to observe is not its real duty we already know exactly where the convoy is. Its real duty is to be observed that is, to fly close enough to the convoy that it will be noticed by the lookouts on the ships. The ships will then send out a radio message to the effect that they have been sighted by an Allied observation plane. Then, when we come round and sink them, the Germans will not find it suspicious at least, not quite so monstrously suspicious that we knew exactly where to go. Alan stops, consults his compass, turns ninety degrees, and begins pacing westwards. "That strikes me as being a very ad hoc arrangement," Lawrence says. "What is the likelihood that Allied observation planes, sent out purportedly at random, will just happen to notice every single Axis convoy?" "I've already calculated that probability, and I'll bet you one of my silver bars that Rudy has done it too," Turing says. "It is a very small probability." "So I was right," Lawrence says, "we have to assume that the jig is up." "Perhaps not just yet," Alan says. "It has been touch and go. Last week, we sank a convoy in the fog." "In the fog?" "It was foggy the whole way. The convoy could not possibly have been observed. The imbeciles sank it anyway. Kesselring became suspicious, as would anyone. So we ginned up a fake message in a cypher that we know the Nazis have broken addressed to a fictitious agent in Naples. It congratulated him on betraying that convoy to us. Ever since, the Gestapo have been running rampant on the Naples waterfront, looking for the fellow." "We dodged a bullet there, I'd say." "Indeed." Alan stops abruptly, takes the metal detector from Lawrence, and turns it on. He begins to walk slowly across a clearing, sweeping the wire loop back and forth just above the ground. It keeps snagging on branches and getting bent out of shape, necessitating frequent repairs, but remains stubbornly silent the whole time, except when Alan, concerned that it is no longer working, tests it on Lawrence's belt buckle. "The whole business is delicate," Alan muses. "Some of our SLUs in North Africa " "SLUs?" "Special Liaison Units. The intelligence officers who receive the Ultra information from us, pass it on to field officers, and then make sure it is destroyed. Some of them learned, from Ultra, that there was to be a German air raid during lunch, so they took their helmets to the mess hall. When the air raid came off as scheduled, everyone wanted to know why those SLUs had known to bring their helmets." "The entire business seems hopeless," Lawrence says. "How can the Germans not realize?" "It seems that way to us because we know everything and our channels of communication are free from noise," Alan says. "The Germans have fewer, and much noisier, channels. Unless we continue to do stunningly idiotic things like sinking convoys in the fog, they will never receive any clear and unmistakable indications that we have broken Enigma." "It's funny you should mention Enigma," Lawrence says, "since that is an extremely noisy channel from which we manage to extract vast amounts of useful information." "Precisely. Precisely why I am worried." "Well, I'll do my best to spoof Rudy," Waterhouse says. "You'll do fine. I'm worried about the men who are carrying out the operations." "Colonel Chattan seems pretty dependable," Waterhouse says, though there's probably no point in continuing to reassure Alan. He's just in a fretting mood. Once every two or three years, Waterhouse does something that is socially deft, and now's the time: he changes the subject: "And meanwhile, you'll be working it out so that Churchill and Roosevelt can have secret telephone conversations?" "In theory. I rather doubt that it's practical. Bell Labs has a system that works by breaking the waveform down into several bands..." and then Alan is off on the subject of telephone companies. He delivers a complete dissertation on the subject of information theory as applied to the human voice, and how that governs the way telephone systems work. It is a good thing that Turing has such a large subject on which to expound, for the woods are large, and it has become increasingly obvious to Lawrence that his friend has no idea where the silver bars are buried. Unburdened by any silver, the two friends ride home in darkness, which comes surprisingly early this far north. They do not talk very much, for Lawrence is still absorbing and digesting everything that Alan has disgorged to him about Detachment 2702 and the convoys and Bell Labs and voice signal redundancy. Every few minutes, a motorcycle whips past them, saddlebags stuffed with encrypted message slips. Chapter 17 ALOFT Any way that livestock can travel, Bobby Shaftoe has too, boxcars, open trucks, forced cross country marches. Military has now invented the airborne equivalent of these in the form of the Plane of a Thousand Names: DC 3, Skytrain, C 47, Dakota Transport, Gooney Bird. He'll survive. The exposed aluminum ribs of the fuselage are trying to beat him to death, but as long as he stays awake, he can fend them off. The enlisted men are jammed into the other plane. Lieutenants Ethridge and Root are in this one, along with PFC Gerald Hott and Sergeant Bobby Shaftoe. Lieutenant Ethridge got dibs on all of the soft objects in the plane and arranged them into a nest, up forward near the cockpit, and strapped himself down. For a while he pretended to do paperwork. Then he tried looking out the windows. Now he has fallen asleep and is snoring so loudly that he is, no fooling, drowning out the engines. Enoch Root has wedged himself into the back of the fuselage, where it gets narrow, and is perusing two books at once. It strikes Shaftoe as typical he supposes that the books say completely different things and that the chaplain is deriving great pleasure from pitting them against each other, like those guys who have a chessboard on a turntable so that they can play against themselves. He supposes that when you live in a shack on a mountain with a bunch of natives who don't speak any of your half dozen or so languages, you have to learn to have arguments with yourself. There's a row of small square windows on each side of the plane. Shaftoe looks out to the right and sees mountains covered with snow and gets scared shitless for a moment thinking maybe they've strayed into the Alps. But off to the left, it still looks like the Mediterranean, and eventually it gives way to Devil's Tower type outcroppings rising up out of stony scrubland, and then after that it is just rocks and sand, or sand without the rocks. Sand puckered here and there, for no particular reason, by clutches of dunes. Damn it, they are still in Africa! You ought to be able to see lions and giraffes and rhinos! Shaftoe goes forward to lodge a complaint with the pilot and copilot. Maybe he can get a card game together. Maybe the view out the front of the plane is something to write home about. He is, on all counts, thrown back in stinging defeat. He sees immediately that the project of finding a better view is doomed. There are only three things in the whole universe: sand, sea, and sky. As a Marine, he knows how boring the sea is. The other two are little better. There is a line of clouds far ahead of them a front of some description. That's all there is. He gets a general notion of their flight plan before the chart is snatched away and stashed out of his view. They seem to be attempting to fly across Tunisia, which is kind of funny, because last time Shaftoe checked, Tunisia was Nazi territory the anchor, in fact, of the Axis presence on the African continent. Today's general flight plan seems to be that they'll cut across the straits between Bizerta and Sicily, then head east to Malta. All of Rommel's supplies and reinforcements come across those very straits from Italy, and land at Tunis or Bizerta. From there, Rommel can strike out east towards Egypt or west towards Morocco. In the several weeks since the British Eighth Army kicked the crap out of him at El Alamein (which is way, way over there in Egypt) he has been retreating westwards back towards Tunis. In the few weeks since the Americans landed in Northwest Africa, he's been fighting on a second front to his west. And Rommel has been doing a damn good job of it, as far as Shaftoe can tell from listening between the stentorian lines of the Movietone newsreels, so laden with sinister cheer, whence the above facts were gleaned. All this means that down below them, vast forces ought to be spread out across the Sahara in readiness for combat. Perhaps there is even a battle going on right now. But Shaftoe sees nothing. Just the occasional line of yellow dust thrown up by a convoy, a dynamite fuse sputtering across the desert. So he talks to those flyboys. It's not until he notices them giving each other looks that he realizes he's going on at great length. Those Assassins must've killed their victims by talking them to death. The card game, he realizes, is completely out of the question. These flyboys don't want to talk. He practically has to dive in and grab the control yoke to get them to say anything. And when they do, they sound funny, and he realizes that these guys are not guys nor fellas. They are blokes. Chaps. Mates. They are Brits. The only other thing he notices about them, before he gives up and slinks back into the cargo hold, is that they are fucking armed to the teeth. Like they were expecting to have to kill twenty or thirty people on their way from the airplane to the latrine and back. Bobby Shaftoe has met a few of these paranoid types during his tour, and he doesn't like them very much. That whole mindset reminds him too much of Guadalcanal. He finds a place on the floor next to the body of PFC Gerald Hott and stretches out. The teeny revolver in his waistband makes it impossible for him to lie on his back, so he takes it out and pockets it. This only transfers the center of discomfort to the Marine Raider stiletto holstered invisibly between his shoulder blades. He realizes that he is going to have to curl up on his side, which doesn't work because on one side he has a standard issue Colt semiautomatic, which he doesn't trust, and on the other, his own six shooter from home, which he does. So he has to find places to stash those, along with the various ammo clips, speed loaders, and maintenance supplies that go with them. The V 44 "Gung Ho" jungle clearing, coconut splitting, and Nip decapitating knife, strapped to the outside of his lower leg, also has to be removed, as does the derringer that he keeps on the other leg for balance. The only thing that stays with him are the grenades in his front pockets, since he doesn't plan to lie down on his stomach. They make their way around the headland just in time to avoid being washed out to sea by the implacable tide. In front of them is a muddy tidal flat, forming the floor of a box shaped cove. The walls of the box are formed by the headland they've just gone round, another, depressingly similar headland a few hundred yards along the shore, and a cliff rising straight up out of the mudflats. Even if it were not covered with relentlessly hostile tropical jungle, this cliff would seal off access to the interior of Guadalcanal just because of its steepness. The Marines are trapped in this little cove until the tide goes back out. Which is more than enough time for the Nip machine gunner to kill them all. They all know the sound of the weapon by now and so they throw themselves down to the mud instantly. Shaftoe takes a quick look around. Marines lying on their backs or sides are probably dead, those on their stomachs are probably alive. Most of them are on their stomachs. The sergeant is conspicuously dead; the gunner aimed for him first. The Nip or Nips have only one gun, but they seem to have all the ammunition in the world the fruits of the Tokyo Express, which has been coming down the Slot with impunity ever since Shaftoe and the rest of the Marines landed early in August. The gunner rakes the mudflats leisurely, zeroing in quickly on any Marine who tries to move. Shaftoe gets up and runs towards the base of the cliff. Finally, he can see the muzzle flashes from the Nip gun. This tells him which way it's pointed. When the flashes are elongated it's pointed at someone else, and it's safe to get up and run. When they become foreshortened, it is swinging around to bear on Bobby Shaftoe He cuts it too close. There is very bad pain in his lower right abdomen. His scream is muffled by mud and silt as the weight of his web and helmet drive him face first into the ground. He loses consciousness for a while, perhaps. But it can't have been that long. The firing continues, implying that the Marines are not all dead yet. Shaftoe raises his head with difficulty, fighting the weight of the helmet, and sees a log between him and the machine gun a piece of wave burnished driftwood flung far up the beach by a storm. He can run for it or not. He decides to run. It's only a few steps. He realizes, halfway there, that he's going to make it. The adrenaline is finally flowing; he lunges forward mightily and collapses in the shelter of the big log. Half a dozen bullets thunk into the other side of it, and wet, fibrous splinters shower down over him. The log is rotten. Shaftoe has gotten himself into a bit of a hole, and cannot see forward or back without exposing himself. He cannot see his fellow Marines, only hear some of them screaming. He risks a peek at the machine gun nest. It is well concealed by jungle vegetation, but it is evidently built into a cave a good twenty feet above the mudflat. He's not that far from the base of the cliff he might just reach it with another sprint. But climbing up there is going to be murder. The machine gun probably can't depress far enough to shoot down at him, but they can roll grenades at him until the cows come home, or just pick him off with small arms as he gropes for handholds. It is, in other words, grenade launcher time. Shaftoe rolls onto his back, extracts a flanged metal tube from his web gear, fits it onto the muzzle of his ought three. He tries to clamp it down, but his fingers slip on the bloody wing nut. Who's the pencil neck that decided to use a fucking wing nut in this context? No point griping about it here and now. There is actually blood all over the place, but he is not in pain. He drags his fingers through the sand, gets them all gritty, tightens that wing nut down. Out of its handy pouch comes one Mark II fragmentation grenade, a.k.a. pineapple, and with a bit more groping he's got the Grenade Projection Adapter, M1. He engages the former into the latter, yanks out the safety pin, drops it, then slips the fully prepped and armed Grenade Projection Adapter, Ml, with its fruity payload, over the tube of the grenade launcher. Finally: he opens up one specially marked cartridge case, fumbles through bent and ruptured Lucky Strikes, finds one brass cylinder, a round of ammunition sans payload, crimped at the end but not endowed with an actual bullet. Loads same into the Springfield's firing chamber. He creeps along the log so that he can pop up and fire from an unexpected location and perhaps not get his head chewed off by the machine gun. Finally raises this Rube Goldberg device that his Springfield has become, jams the butt into the sand (in grenade launcher mode the recoil will break your collarbone), points it toward the foe, pulls the trigger. Grenade Projection Adapter, M1 is gone with a terrible pow, trailing a damn hardware store of now superfluous parts, like a soul discarding its corpse. The pineapple is now soaring heavenward, even its pin and safety lever gone, its chemical fuse aflame so that it even has a, whattayoucallit, an inner light. Shaftoe's aim is true, and the grenade is heading where intended. He thinks he's pretty damn smart until the grenade bounces back, tumbles down the cliff, and blows up another rotten log. The Nips have anticipated Bobby Shaftoe's little plan, and put up nets or chicken wire or something. He lies on his back in the mud, looking up at the sky, saying the word "fuck" over and over. The entire log throbs, and something akin to peat moss showers down into his face as the bullets chew up the rotten wood. Bobby Shaftoe says a prayer to the Almighty and prepares to mount a banzai charge. Then the maddening sound of the machine gun stops, and is replaced by the sound of a man screaming. His voice sounds unfamiliar. Shaftoe levers himself up on his elbow and realizes that the screaming is coming from the direction of the cave. He looks up into the big, sky blue eyes of Enoch Root. The chaplain has moved from his nook at the back of the plane and is squatting next to one of the little windows, holding onto whatever he can. Bobby Shaftoe, who has rolled uncomfortably onto his stomach, looks out a window on the opposite side of the plane. He ought to see the sky, but instead he sees a sand dune wheeling past. The sight makes him instantly nauseated. He does not even consider sitting up. Brilliant spots of light are streaking wildly around the inside of the plane, like ball lightning, but and this is far from obvious at first they are actually projected against the wall of the plane, like flashlight beams. He back traces the beams, taking advantage of a light haze of vaporized hydraulic fluid that has begun to accumulate in the air; and finds that they originate in a series of small circular holes that some asshole has punched through the skin of the plane while he was sleeping. The sun is shining through these holes, always in the same direction of course; but the plane is going every which way. He realizes that he has actually been lying on the ceiling of the airplane ever since he woke up, which explains why he was on his stomach. When this dawns on him, he vomits. The bright spots all vanish. Very, very reluctantly, Shaftoe risks a glance out the window and sees only greyness. He thinks he is on the floor now. He is next to the corpse, at any rate, and the corpse was strapped down. He lies there for several minutes, just breathing and thinking. Air whistles through the holes in the fuselage, loud enough to split his head. Someone some madman is up on his feet, moving about the plane. It is not Root, who is in his little nook dealing with a number of facial lacerations that he picked up during the aerobatics. Shaftoe looks up and sees that the moving man is one of the British flyboys. The Brit has yanked off his headgear to expose black hair and green eyes. He's in his mid thirties, an old man. He has a knobby, utilitarian face in which all of the various lumps, knobs and orifices seem to be there for a reason, a face engineered by the same fellows who design grenade launchers. It is a simple and reliable face, by no means handsome. He is kneeling next to the corpse of Gerald Hott and is examining it minutely with a flashlight. He is the very picture of concern; his bedside manner is flawless. Finally he slumps back against the ribbed wall of the fuselage. "Thank god," he says, "he wasn't hit." "Who wasn't?" Shaftoe says. "This chap," the flyboy says, slapping the corpse. "Aren't you going to check me?" "No need to." "Why not? I'm still alive. " "You weren't hit," the flyboy says confidently. "If you'd been hit, you'd look like Lieutenant Ethridge." For the first time, Shaftoe hazards movement. He props himself up on one elbow, and finds that the floor of the plane is slick and wet with red fluid. He had noticed a pink mist in the cabin, and supposed that it was produced by a hydraulic fluid leak. But the hydraulic system now seems hunky dory, and the stuff on the floor of the plane is not a petroleum product. It is the same red fluid that figured so prominently in Shaftoe's nightmare. It is streaming downhill from the direction of Lieutenant Ethridge's cozy nest, and the Lieutenant is no longer snoring. Shaftoe looks at what is left of Ethridge, which bears a striking resemblance to what was lying around that butcher shop earlier today. He does not wish to lose his composure in the presence of the British pilot, and indeed, feels strangely calm. Maybe it's the clouds; cloudy days have always had a calming effect on him. "Holy cow," he finally says, "that Kraut twenty millimeter is some thing else." "Right," the flyboy says, "we've got to get spotted by a convoy and then we'll proceed with the delivery." Cryptic as it is, this is the most informative statement Bobby's ever heard about the intentions of Detachment 2702. He gets up and follows the pilot back to the cockpit, both of them stepping delicately around several quivering giblets that were presumably flung out of Ethridge. "You mean, by an allied convoy, right?" Shaftoe asks. "An allied convoy?" the pilot asks mockingly. "Where the hell are we going to find an allied convoy? This is Tunisia ." "Well, then, what do you mean, we've got to get spotted by a convoy? You mean we have to spot a convoy, right?" "Very sorry," the flyboy says, "I'm busy." When he turns back, he finds Lieutenant Enoch Root kneeling by a relatively large piece of Ethridge, going through Ethridge's attache case. Shaftoe cops a look of exaggerated moral outrage and points the finger of blame. "Look, Shaftoe," Root shouts, "I'm just following orders. Taking over for him." He pulls out a small bundle, all wrapped in thick, yellowish plastic sheeting. He checks it over, then glances up reprovingly, one more time, at Shaftoe. "It was a fucking joke!" Shaftoe says. "Remember? When I thought those guys were looting the corpses? On the beach?" Root doesn't laugh. Either he's pissed off that Shaftoe successfully bullshitted him, or he doesn't enjoy corpse looting humor. Root carries the wrapped bundle back to that other body, the one in the wetsuit. He stuffs the bundle inside the suit. Then he squats by the body and ponders. He ponders for a long time. Shaftoe kind of gets a kick out of watching Enoch ponder, which is like watching an exotic dancer shake her tits. The light changes again as they descend from the clouds. The sun is setting, shining redly through the Saharan haze. Shaftoe looks out a window and is startled to see that they are over the sea now. Below them is a convoy of ships each making a neat white V in the dark water, each lit up on one side by the red sun. The airplane banks and makes a slow loop around the convoy. Shaftoe hears distant pocking noises. Black flowers bloom and fade in the sky around them. He realizes that the ships are trying to hit them with ack ack. Then the plane ascends once more into the shelter of the clouds, and it gets nearly dark. He looks at Enoch Root for the first time in a while. Root is sitting back in his little nook, reading by flashlight. A bundle of papers is open on his lap. It is the plastic wrapped bundle that Root took out of Ethridge's attache case and shoved into Gerald Hott's wetsuit. Shaftoe figures that the encounter with convoy and ack ack finally pushed Root over the edge, and that he yanked the bundle right back out again to have a look at it. Root glances up and locks eyes with Shaftoe. He does not seem nervous or guilty. It is a strikingly calm and cool look. Shaftoe holds his gaze for a long moment. If there were the slightest trace of guilt or nervousness there, he would turn the chaplain in as a German spy. But there isn't Enoch Root ain't working for the Germans. He ain't working for the Allies either. He's working for a Higher Power. Shaftoe nods imperceptibly, and Root's gaze softens. "They're all dead, Bobby," he shouts. "Those islanders. The ones you saw on the beach on Guadalcanal." So that explains why Root is so touchy about corpse looting jokes. "Sorry," Shaftoe says, moving aft so they don't have to scream at each other. "How'd it happen?" "After we got you back to my cabin, I transmitted a message to my handlers in Brisbane," Root says. "Enciphered it using a special code. Told them I'd picked up one Marine Raider, who looked like he might actually live, and would someone please come round and collect him." Shaftoe nods. He remembers that he'd heard lots of dots and dashes, but he had been out of whack with fevers and morphine and whatever home remedies Root had pulled out of his cigar box. "Well, they responded," Root went on, "and said 'We can't go there, but would you please take him to such and such place and rendezvous with some other Marine Raiders.' Which, as you'll recall, is what we did." "Yeah," Shaftoe says. "So far so good. But when I got back to the cabin after handing you over, the Nipponese had been through. Killed every islander they could find. Burned the cabin. Burned everything. Set booby traps around the place that nearly killed me. I just barely got out of the damn place alive." Shaftoe nods, as only a guy who's seen the Nips in action can nod. "Well they evacuated me to Brisbane where I started making a stink about codes. That's the only way they could have found me obviously our codes had been broken. And after I'd made enough of a stink, someone apparently said, 'You're British, you're a priest, you're a medical doctor, you can handle a rifle, you know Morse code, and most importantly of all, you're a fucking pain in the ass so off you go!" And next thing I know, I'm in that meat locker in Algiers." Shaftoe glances away and nods. Root seems to get the message, which is that Shaftoe doesn't know anything more than he does. Eventually, Enoch Root wraps the bundle up again, just like it was before. But he doesn't put it back in the attache case. He stuffs it into Gerald Hott's wetsuit. Later they emerge from the clouds again, close to a moonlit port, and dip down very close to the ocean, going so slow that even Shaftoe, who knows nothing about planes, senses they are about to stall. They open the side door of the Dakota and, one two three NOW, throw the body of PFC Gerald Hott out into the ocean. He makes what would be a big splash in the Oconomowoc town pool, but in the ocean it doesn't come to much. An hour or so later they land the same Gooney Bird on an airstrip in the midst of a stunning aerial bombardment. They abandon the Skytrain at the end of the airstrip, next to the other C 47, and run through darkness, following the lead of the British pilots. Then they go down a stairway and are underground in a bomb shelter, to be precise. They can feel the bombs now but can't hear them. "Welcome to Malta," someone says. Shaftoe looks around and sees that he is surrounded by men in British and American uniforms. The Americans are familiar it's the Marine Raider squad from Algiers, flown in on that other Dakota. The Brits are unfamiliar, and Shaftoe pegs them as the SAS men that those fellows in Washington were telling him about. The only thing they all have in common is that each man, somewhere on his uniform, is wearing the number 2702. Chapter 18 NON DISCLOSURE Avi shows up on time, idling his fairly good, but not disgustingly ostentatious, Nipponese sports car gingerly up the steep road, which has crazed into a loose mosaic of asphalt flagstones. Randy watches from the second floor deck, staring fifty feet almost straight down through the sunroof. Avi is clad in the trousers of a good tropical weight business suit, a tailored white Sea Island cotton shirt, dark ski goggles, and a wide brimmed canvas hat. The house is a tall, isolated structure rising out of the middle of a California grassland that slopes up from the Pacific, a few kilometers away. Chilly air climbs up the slope, rising and falling in slow surges, like surf on a beach. When Avi gets out of his car the first thing he does is pull on his suit jacket. He hauls two oversized laptop cases out of the tiny luggage compartment in the car's nose, walks into the house without knocking (he has not been to this particular house before, but he has been