The engineering office is a hive of activity in contrast to the view outside the windows, and nobody notices Cooper and the British spook as they slip inside and look over the operations controller's shoulder at his screens. "Left ten, up six," someone calls. "Looks like a hatch," says someone else.

Strange gray outlines swim on the screen. "Get me a bit more light on t h a t ..."

Everyone falls silent for a while. "That's not good," says one of the engineers, a wiry guy from New Mexico who Cooper vaguely remembers is called Norm. The big TV screen in the middle is showing a flat surface emerging from a gray morass of abyssal mud. A rectangular opening with rounded edges gapes in it — a hatch? — and there's something white protruding from a cylinder lying across it. The cylinder looks like a sleeve. Suddenly Cooper realizes what he's looking at: an open hatch in the sail of a submarine, the skeletonized remains of a sailor lying half-in and half-out of it.

"Poor bastards probably tried to swim for it when they realized the torpedo room was flooded," says a voice from the back of the room. Cooper looks around. It's Davis, somehow still managing to look like a Navy officer even though he's wearing a civilian suit. "That's probably what saved the pressure hull — the escape hatch was already open and the boat was fully flooded before it passed through its crush depth."

Cooper shivers, staring at the screen. "Consider Phlebas," he thinks, wracking his brain for the rest of the poem.

"Okay, so what about the impact damage?" That's Duke, typically businesslike: "I need to know if we can make this work."

More activity. Camera viewpoints swivel crazily, taking in the length of the Golf-II-class submarine. The water at this depth is mostly clear and the barge floodlights illuminate the wreck mercilessly, from the blown hatch in the sail to the great gash in the side of the torpedo room. The submarine lies on its side as if resting, and there's little obvious damage to Cooper's untrained eye. A bigger hatch gapes open in front of the sail. "What's that?" he asks, pointing.