Farland knew that Sidney Prale had told the truth. Why, then, had George Lerton told a falsehood about meeting Prale and talking to him, when the truth would have helped to establish an alibi? Why had the clothing merchant and the barber lied?

"I suppose I'll have to use stern methods," Farland told himself. "Old police stuff, I suppose. Well, I'm the man that can do it, take it from me!"

He went up to Prale's suite again.

"Can't find out anything about that woman," he reported. "And I want to get in touch with her. Keep your eyes peeled for her, Sid, and arrange for me to catch sight of her, if you can. Now you'd better take a little rest. You've been through an experience to-day. I'm going out to get busy, and I'm going to take Murk with me."

"What for?" Murk demanded.

"You're going to help me, old boy."

"Me work with a cop?" Murk exclaimed.

"To help Mr. Prale."

"Well, that's different," Murk said. "Wait until I get my hat."