I'm not a doctor, far less a good one, and all I could tell about the man behind the desk was that he had been dead long enough for rigor mortis to set in but not long enough for it to wear off. He was stiff as a man frozen to death in a Siberian winter. He'd been gone for hours. How many, I'd no idea.

He wore four gold bands on his sleeves, so that would seem to make him the Captain. The Captain in the radio cabin. Captains are seldom found in the radio cabin and never behind the desk. He was slumped back in his chair, his head to one side, the back of it resting against a jacket hanging from a hook on the bulkhead, the side of it against a wall cabinet. Rigor mortis kept him in that position but he should have slipped to the floor or at least slumped forward on to the table before rigor mortis had set in.

There were no outward signs of violence that I could see but on the assumption that it would be stretching the arm of coincidence a bit far to assume that he had succumbed from natural causes while preparing to defend his life with his

Peacemaker I took a closer look. I tried to pull him upright but he wouldn't budge, I tried harder, I heard the sound of cloth ripping, then suddenly he was upright, then fallen over to the left of the table, the right arm pivoting stiffly around and upwards, the Colt an accusing finger pointing at heaven.

I knew now how he had died and why he hadn't fallen forward before. He'd been killed by a weapon that projected from his spinal column, between maybe the sixth and seventh vertebra, I couldn't be sure, and the handle of this weapon had caught in the pocket of the jacket on the bulkhead and held him there.

My job was one that had brought me into contact with a fair number of people who had died from, a fair assortment of unnatural causes, but this was the first time I'd ever seen a man who had been killed by a chisel. A half-inch wood chisel, apparently quite ordinary in every respect except that its wooden handle had been sheathed by a bicycle's rubber hand-grip, the kind that doesn't show fingerprints. The blade was imbedded to a depth of at least four inches and even allowing for an edge honed to a razor sharpness it had taken a man as powerful as he was violent to strike that blow. I tried to jerk the chisel free, but it wouldn't come. It often happens that way with a knife; bone or cartilage that has been pierced by a sharp instrument locks solid over the steel when an attempt is made to withdraw it. I didn't try again. The chances were that the killer himself had tried to move it and failed. He wouldn't have wanted to abandon a handy little sticker like that if he could help it. Maybe someone had interrupted him. Or maybe he had a large supply of half-inch wood chisels and could afford to leave the odd one lying around carelessly in someone's back.

Anyway, I didn't really want it. I had my own. Not a chisel but a knife. I eased it out of the plastic sheath that had been sewn into the inner lining of my coat, just behind the neck. It didn't look so much, a four-inch handle and a little double-edged three-inch blade. But that little blade could slice through a two-inch manila with one gentle stroke and the point was the point of a lancet. I looked at it and looked at the inner door behind die radio table, the one that led to the radio-operator's sleeping cabin, then I slid a little fountain-pen torch from my breast pocket, crossed to the outer door, switched off the overhead lamp, did the same for the table lamp and stood there waiting.

How long I stood there I couldn't be sure. Maybe two minutes, maybe as long as five. Why I waited I don't know. I told myself I was waiting until my eyes became adjusted to the almost total darkness inside the cabin, but I knew it wasn't that. Maybe I was waiting for some noise, the slightest imagined whisper of stealthy sound, maybe I was waiting for something, anything, to happen — or maybe I was just scared to go through that inner door. Scared for myself? Perhaps I was. I couldn't be sure. Or perhaps I was scared of what I would find behind that door. I transferred the knife to my left hand — I'm right-handed but ambidextrous in some things — and slowly closed my fingers round the handle of the inner door.

It took me all of twenty seconds to open that door the twelve inches that was necessary for me to squeeze through the opening. In the very last half-inch the damned hinges creaked. It was a tiny sound, a sound you wouldn't normally have heard two yards away. With my steel-taut nerves in the state they were in, a six-inch naval gun going off in my ear would have sounded muffled by contrast. I stood petrified as any graven image, the dead man by my side was no more immobile than I. I could hear the thump of my accelerating heartbeat and savagely wished the damned thing would keep quiet.

If there was anyone inside waiting to flash a torch in my face and shoot me, knife me or do a little fancy carving up with a chisel, he was taking his time about it. I treated my lungs to a little oxygen, stepped soundlessly and sideways through the opening. I held the flash at the full outstretch extent of my right arm. If the ungodly are going to shoot at a person who is shining a torch at them they generally aim in the very close vicinity of the torch as the unwary habitually hold a torch in front of them. This, as I had learnt many years previously from a colleague who'd just had a bullet extracted from the lobe of his left lung because of this very unwariness, was a very unwise thing to do. So I held the torch as far from my body as possible, drew my left arm back with the knife ready to go, hoping fervently that the reactions of any person who might be in that cabin were slower than mine, and slid forward the switch of the torch.

There was someone there all right, but I didn't have to worry about his reactions. Not any more. He'd none left. He was lying face down on the bunk with that huddled shapeless look that belongs only to the dead. I made a quick traverse of the cabin with the pencil beam. The dead man was alone. As in the radio cabin, there was no sign of a struggle.

I didn't even have to touch him to ascertain the cause of death. The amount of blood that had seeped from that half-inch incision in his spine wouldn't have filled a teaspoon. I wouldn't have expected to find more; when the spinal column has been neatly severed the heart doesn't go on pumping long enough to matter a damn. There would have been a little more internal bleeding, but not much.

The curtains were drawn. I quartered every foot of the deck, bulkheads and furniture with my flash. I don't know what I expected to find: what I found was nothing. I went out, closed the door behind me and searched the radio cabin with the same results. There was nothing more for me here, I had found all I wanted to find, all I had never wanted to find. And I never once looked at the faces of the two dead men. I didn't have to, they were faces I knew as well as the face that looked back at me every morning out of my shaving mirror. Seven days previously they had dined with me and our chief in our favourite pub in London and they had been as cheerful and relaxed as men in their profession can ever be, their normal still watchfulness overlaid by the momentary savouring of the lighter side of life they knew could never really be for them. And I had no doubt they had gone on being as still and watchful as ever, but they hadn't been watchful enough and now they were only still. What had happened to them was what inevitably happened to people in our trade, which would inevitably happen to myself when the time came. No matter how clever and strong and ruthless you were, sooner or later you would meet up with someone who was cleverer and stronger and more ruthless than yourself. And that someone would have a half-inch wood chisel in his band and all your hardly won years of experience and knowledge and cunning counted for nothing for you never saw him coming and you never saw him coming because you had met your match at last and then you were dead.