He drank eagerly, and then the man placed the mug down beside him, the door was again closed and locked, and Walter was alone.

He rose at once to his feet, and felt that his sleep had greatly refreshed and strengthened him.
"I will have another sleep, before I try," he said to himself.

"It will not be light till six, and it must be eight or nine o'clock now.

I must make up my mind, before I doze off, to wake in about three or four hours; but first, I must see what I can find, here." He felt round the walls, but failed to find anything like a rope.
"I must trust to luck," he said; "I don't suppose they will post many sentries.

These fellows are not real soldiers, and no doubt they will all be sound asleep in a couple of hours." So saying, he again lay down, and was speedily asleep.