"First," suggested Will, "we'd better make sure that the fellow got the money. The bank note I found may have never been in the possession of Mr. Carson. And even if it was, it may be the only one to be blown out of its hiding place by the explosion. It strikes me that we'd better give the place a thorough search before we waste much time looking for Ventner. If, as Tommy says, he never left the mine by way of the shaft, we've got him blocked in, all right!"

The boys now began a careful examination of the cross-cutting where the explosion had taken place. As has been stated, more than one pillar had been blown out. There was a great heap of debris on the floor, and this the boys attacked with a vim.

Tommy and George were now standing guard at the mouth of the cross-cutting so that no one could pass down the gangway toward the shaft.

"Suppose that fellow did get the money?" asked Sandy, as the boys cleared away the heaps of slate, "what then?"

"Then we'll have to take it away from him!"

"We'll catch him first."

"We've got him blocked in, haven't we?" asked Sandy.

"Oh, we know that he can't get out," Dick cut in, "but we know, too, that there are a lot of shallow benches along that gangway. We can't walk in and pick him out in a minute. Besides," the boy continued, "when we find him, we may find his pockets empty."

"That's just what we will do!" Elmer agreed. "He'll hide the money in another place, and swear that he never found it!"

"I wish we'd kicked him out of the mine!" exclaimed Sandy.