Hal, Accomplice!, the blizzard, Weston memories (p. 956)
I tried briefly to picture Ortho Stice hoisting his bunk up and bolting it to the ceiling without waking Coyle.
Context
The naturalistic hypothesis gets exactly one sentence and dies of its own implausibility — Hal doesn't even finish the thought before the narration moves on. The haunting sits unresolved in the middle of an ordinary snowed-in morning, which is the scene's whole method: the wraith normalized into E.T.A. daylight.