He was looking off in the direction of the sound, when the phosphorescent gleam of a pair of eyes shot out from the darkness upon him.
There was a greenish glare in the unexpected appearance that left no doubt of their identity.

Instead of Indians, as he had imagined at first, there was some kind of a wild animal that was prowling about them.

None of the Apaches had entered the cave at all--only a single beast.
But where had he come from?
By what means had he entered the cave?
These were very significant questions, of the greatest importance to the two who were shut within the subterranean prison.

Fred did not feel himself competent to answer, so he reached over and shook Mickey harder than ever, determined that he should arouse.
"Come, wake up, you sleepy head," he called out.

"There might a dozen bears come down on you and eat you up, before you would open your eyes! Come, Mickey, there is need of your waking!" "Begorrah--but--there's more naad of me slaaping," muttered the Irishman, gradually recalling his senses.