sound to do so.

"I'd be in a nice fix if they should seek to retreat to the cave!"
Ned thought.

While he listened an answer came to his call--the low, sharp signal
of the Wolves!

"That's Jimmie!" Ned muttered. "He's in some of the holes just
outside this room."

"Where are you?" he asked, and the answer came with a giggle.

"We're packed away like sardines! Come get us out! We're only tied
with ropes, but the ropes know their business! Here! To the right of
the fire!"

Ned soon found that the wall at the point indicated was of plank,
like the door, painted and sanded to imitate rock. He had no
difficulty in finding the opening, and in a short time the boys were
relieved of their bonds. Ned opened his eyes wide at sight of Dode,
the fourth boy, and of Oliver, who had been left at the camp.

"What's the shooting outside?" asked Jimmie, stretching his arms,
cramped from long confinement. "Who's out there with Uncle Ike? Say,
but I was glad to hear the gentle voice of that wicked old mule!"

"And now," Teddy observed, "how about getting out of this? I'm
hungry."