It was warm, and very comfortable, and he had half-dozed off before he caught himself back into wakefulness and returned to his room.

The mouth of his tunnel he packed with snow.

After that he wound the blanket about him and gave himself up calmly to sleep.
Only Peter lay awake after that.

And it was Peter who roused Jolly Roger in what would have been the early dawn outside the snow-dune.

McKay felt his restless movement, and opened his eyes.