"Remember," he cried, "that the two train robbers and the cowboy viligance committee went, in that direction last night! You fellows would better watch out, or you'll get mixed up with hold-up men!"

Katz turned an angry face toward the boy, muttered something to his companion, and went on without speaking.

"Those fellows won't dare to sleep a single night after that!" laughed Johnson. "They're scared right now!"

"I don't know anything about Cullen," Tommy answered with a grin, "but I know that the man Katz is a false alarm. You should have seen him take to his heels last night, when the train robbers rushed through the camp. I'd like to know what he's in here for, anyway!"

"That's the very thing I'm here to explain!" replied Johnson. "The story," he continued, "begins with the death of Thomas T. Fremont, a Chicago banker, some weeks ago."

"I remember the case," Will interrupted. "The police declare that the man was murdered, while his relatives insist that he might have committed suicide."

"That's exactly the point," Johnson went on. "The police are working on the theory that Fremont was murdered at his private room at the bank one hot night in July. The relatives declare that there was no reason whatever for him to have committed suicide, yet they insist that he must have done so. Now, understand me," Johnson continued, "the relatives are all interested in the defense of a disinherited son of the banker who is charged with the crime of murder. And so, you see, when the police ask them to point to some one fact substantiating the suicide theory they are unable to do so.

"The result of this peculiar situation is that the police insist that the relatives are advancing the suicide theory solely for the purpose of securing the acquittal of the son. To the average citizen, it would seem that the police are right. The son was always a thorn in the flesh of his father. He has squandered thousands of dollars in riotous living, and brought no end of disgrace on the family whose name he bears. And still the relatives insist that he is innocent, and are willing to spend a million in order to prevent his dying the death of a murderer. Mr. Horton represents the relatives."

"I begin to see daylight!" Will exclaimed. "I guess this case isn't such a little baby affair as we thought it might be!"

"Indeed it is no baby case!" exclaimed Johnson. "The family of the dead banker have a well-defined theory concerning the death of the old man which might help their case with the police if they would only present it to the chief. This, however, they refuse to do, declaring that the police would only take advantage of the confidence and use the information received to the prejudice of the prisoner."