Within this body on the bed, the great pump works on and on, needing no rest. All over this quietly pulsating vehicle, the skeleton crew make their tiny adjustments. As for what goes on topside, they know nothing of this but danger-signals, false alarms mostly; red lights flashed from the panicky brain-stem, curtly contradicted by green all-clears from the level-headed cortex. But now the controls are on automatic. The cortex is drowsing; the brain-stem registers only an occasional nightmare. Everything seems set for a routine run, from here to morning. The odds are enormously against any kind of accident. The safety-record of this vehicle is outstanding.

Just let us suppose, however —

Let us take the particular instant, years ago, when George walked into The Starboard Side and set eyes for the first time on Jim, not yet demobilised and looking stunning beyond words in his Navy uniform. Let us then suppose that, at that same instant, deep down in one of the major branches of George’s coronary artery, an unimaginably gradual process began. Somehow – no doctor can tell us exactly why – the inner lining begins to become roughened. And, one by one, on the roughened surface of the smooth endothelium, ions of calcium, carried by the bloodstream, begin to be deposited. . . . Thus, slowly, invisibly, with the utmost discretion and without the slightest hint to those old fussers in the brain, an almost indecently melodramatic situation is contrived: the formation of the atheromatous plaque.

Let us suppose this, merely. (The body on the bed is still snoring.) This thing is wildly improbable. You could bet thousands of dollars against its happening, tonight or any night. And yet it could, quite possibly, be about to happen – within the next five minutes.

Very well – let us suppose that this is the night, and the hour, and the appointed minute.

Now —

The body on the bed stirs slightly, perhaps; but it does not cry out, does not wake. It shows no outward sign of the instant, annihilating shock. Cortex and brain-stem are murdered in the blackout with the speed of an Indian strangler. Throttled out of its oxygen, the heart clenches and stops. The lungs go dead, their power-line cut. All over the body, the arterials contract. Had this blockage not been absolute, had the occlusion occurred in one of the smaller branches of the artery, the skeleton crew could have dealt with it; they are capable of engineering miracles. Given time, they could have rigged up bypasses, channelled out new collateral communications, sealed off the damaged area with a scar. But there is no time at all. They die without warning at their posts.

For a few minutes, maybe, life lingers in the tissues of some outlying regions of the body. Then, one by one, the lights go out and there is total blackness. And if some part of the non-entity we called George has indeed been absent at this moment of terminal shock, away out there on the deep waters, then it will return to find itself homeless. For it can associate no longer with what lies here, unsnoring, on the bed. This is now cousin to the garbage in the container on the back porch. Both will have to be carted away and disposed of, before too long.