"I'm afraid they will!" replied Tommy. "There's some one been there this morning, and it wasn't the cowboys or the detectives, either. It was either Wagner or the train robbers."
"Just as sure as you're a foot high," exclaimed George, "there's some one moving about in the entrance to that cavern now! I can see something moving, but I can't see any features."
"Well, don't look that way too steadily," Tommy cried. "If Wagner is over there we don't want to put these detectives wise to the fact. He's the man they're in here after, you remember!"
"Well, there's some one there, all right!" exclaimed George. "While you were talking, I saw a chalk-white face appear for a second at the entrance. I'll bet he's been hiding there ever since last night."
"He was with the train robbers last night," suggested Tommy. "At least we think he was, for there are only two robbers and we saw three men."
"He may be with the train robbers, now for all we know," George put in.
"Yes, they may be hiding over there," Tommy admitted. "If I thought they were, I'd steer these bum detectives up against them!"
"We'd better not take any chances!" advised George. "If Wagner is over there, he may be alone. In that case, these cheap flatties would geezle him and make for the Union Pacific railroad without stopping to say good-by to the hills. And once they get to the railroad, it's all off with the young man in Chicago who is soon to be tried for murder."
While the boys discussed the situation, Katz caught sight of the moving figure in the entrance to the cavern. The boys saw him pointing in that direction and about abandoned hope.
"There's some one over there," the boys heard Katz saying, "and we may as well go and see who it is. Have you got a pair of handcuffs with you?" he added, turning to his companion.