He was a good sleeper, and there had been no noise.
Hadn't there, though?
It came again.

And now Cadet Pierson rubbed his eyes and half rose on his cot, leaning his head on one hand.
Now, with intense interest, he watched the proceedings of his roommate, turnback Haynes, who was up and moving stealthily about the room, every action being clearly revealed in the bright moonlight that was streaming through the windows..