In an ice-cavern behind the boat the last red embers of a dying fire flicker from time to time over the figures of two men.

One is seated, resting his back against the side of the cavern.

The other lies prostrate, with his head on his comrade's knee.

The first of these men is awake, and thinking.

The second reclines, with his still white face turned up to the sky--sleeping or dead.