In the commissioner’s office, Cardona frankly admitted that the break he had expected had not arrived.
“I’ve been after the Glenn case,” he told the commissioner, “because it seemed most alive. There’s my report. Plenty of facts — but not a single tracer.
“I went through Glenn’s room at the Merrimac Club, but I didn’t find a thing that was worth while.
“There was another package of cigarettes there — in the coat pocket of his business suit. Only one cigarette left in it. I had it analyzed with the other.
“No traces of poison — no traces of any dope. Those cigarettes were Glenn’s regular brand.”
“What is your next step?” questioned Weston.
“The one step,” declared Cardona, “is to get at the motive for these murders. In a way, I consider both cases as one. There’s not a trace of a motive, so far, in the death of Louis Glenn. But there is in the case of Harshaw.”
“Burglary?” suggested Biscayne.
“Right!” declared Cardona. “It’s a sure thing that the old man expected some one to come in there after something. We’ve searched the place pretty thoroughly — that is, Mayhew has.
“We found a lot of half-finished contrivances in the workshop. We’ve left them where they were.