"But I can't stay here," cried Prebbles querulously. "Didn't you hear me say I had work to do? I've got to help Motor Matt—all of you know why."

"Anyhow, Prebbles," said Matt, "nothing can be done until morning. You stay here and keep quiet until then. Meanwhile, Cameron, McGlory, and I will mark out a course, and we'll tell you all about it before we begin following it. If you're able, you can go with us. If you're not able, you can stay here and feel sure that I'll carry out this make-and-break affair of yours just as though it was my own. You can trust me to advance the spark of friendship, can't you?"

"There ain't any one else I'd trust but you, Motor Matt," declared Prebbles. "But I'm going with you, in the morning. I haven't any money——"

"You don't need any," interrupted Cameron. "You're welcome to stay here as long as you please, at the government's expense. You have brought a clue which may lead to the capture of Murgatroyd, and the government has offered a reward of one thousand dollars for him."

"If he can be captured, Prebbles," added Matt, "the money will go to you."

"It'll come in handy, but—but it's Newt I want."

At a nod from the doctor, Matt, McGlory, and Cameron went into the other room and closed the door.

"Prebbles will never be able to leave here to-morrow morning," averred Cameron.

"It's up to McGlory and me," said Matt, "to do what we can."

"Give me a share in the work," begged Cameron. "Perhaps I can do something. If necessary, I'll get a furlough."