The hours wasted away, and hunger came to torment the captives again. A portion of Tom's half of the cake was left; they divided and ate it. But they seemed hungrier than before. The poor morsel of food only whetted desire.

     By-and-by Tom said:

     "SH! Did you hear that?"

     Both held their breath and listened. There was a sound like the faintest, far-off shout. Instantly Tom answered it, and leading Becky by the hand, started groping down the corridor in its direction. Presently he listened again; again the sound was heard, and apparently a little nearer.

     "It's them!" said Tom; "they're coming! Come along, Becky--we're all right now!"