"That's so," agreed Big-foot, hurrying over to him. "The thing is sealed up with mortar. Hasn't been used in fifty cats' lives. Wonder what's behind it."

"Not the boy; that's certain."

"Nope. He didn't fall through there."

"Find any other doors open or closed?"

"Nary a one."

"Well, that seems to settle this part of the ranch; we've got to look somewhere else. What bothers me is that we don't hear him call. If he was anywhere near, and had his voice, he'd be yelling for help," decided the big cowboy.

"Don't think he's dead, do you?"

"I don't think at all. I don't know," answered Big-foot.

"It's my idea that the gopher isn't in here at all," announced Curley, with emphasis.

His companion eyed him thoughtfully.