"Did you see them?" asked Will.
"Can't see anything," was the reply, "it's too dark!"
"Then how do you know there's some one coming?"
"We saw them coming toward the cave, didn't we?" asked Chester.
"Look here," Will exclaimed. "Did you see any one entering the mouth of this tunnel?"
"When the mouth of the tunnel is clear," Chester replied, "there's a faint mist of light visible. While I lay up there watching I heard whispering voices and the entrance was blocked."
"Perhaps they've rolled the boulder in front of it," suggested Will.
"You don't like the idea of being caught like a rat in a trap any more than I do," Chester said, "but I really believe that if we ever get out of here alive, we'll have to head toward the west and make our exit on that side of the range."
"I'd like to know how many people know about this hiding place!" Will grumbled. "If people walk out of the valley and drop down here, there may, for all we know, be others in hiding further down."
"That's a fact," Chester admitted.