"No," answered Dyke, with a frown. "We need clear brains for the work
in hand. If you know aught of this monstrous crime, tell it at once."

"I do know a considerable," said Mr. Wilks. "I was the first man who
discovered Arnold Nicholson after he'd been shot. The safe was in the
very car that I occupied. I saw the men get the swag. There were three
of them."

"Go on."

"They all wore mask, so of course I could not tell who they were; but
I've an idea that they were from Chicago."

"Why have you such an idea?"

"Because I saw three suspicious chaps get on at Twenty-second street.
I think they are the chaps who killed poor Arnold, and got away with
the money in the safe."

"Did you recognize them?"

"No--that is, I'm not positive; but I think one of 'm was a chap that
is called Skinny Joe, a hard pet, who used to work in a saloon on
Clark street."

"Indeed."

"Yes. It might be well to keep your eye out in that quarter."