“To begin with, he and Prescott both moved into the neighborhood at the same time — six months ago. Knowing that if a switch of victims had been made in that van, the man who went to the hospital must have had medical treatment, and remembering what Dr. Wallace had said about the injuries being facial and superficial, the wonder of it is that I didn’t suspect Weyman before.”

“Was Trader in on Prescott’s murder?” she asked.

“No. He knew nothing about it until later, because he went right ahead and delivered the stuff to Prescott’s garage. Then, learning of the murder, and knowing the police would search the garage, he sneaked the stuff up to Diana Morgan’s apartment, to take it out last night concealed in inexpensive trunks and suitcases which would enable it to be shipped.”

She frowned thoughtfully, then asked, “Why did Weyman support Driscoll by swearing he’d seen him at the telephone?”

Mason laughed. “Because he was clever as hell. He didn’t care about Driscoll, but by swearing, apparently unwillingly, that he’d been standing where he could see Driscoll, he gave himself an alibi for the time of the auto accident, just in case anyone should get to wondering. It was a clever move. You see, he told his wife all about it, knowing she’d tell Mrs. Snoops, and knowing Driscoll’s lawyer would interview Mrs. Snoops. The way he staged it fooled everyone. I might have doubted whether it was Jimmy Driscoll he saw at the phone, but he planted his build-up so smoothly that until I went back to first principles I never doubted that Weyman was there on the street, instead of in the van.”

“All right,” she told him. “I know enough now to figure it all out. If there are any loose ends I can tie them up myself. You pay attention to your driving.”

Mason stole a glance at his wrist watch, frowned, and pushed the accelerator down close to the floorboards. “And how!” he said.

Chapter seventeen

The President Monroe had blown its fifteen-minute whistle. One minute to go. All visitors had been ordered ashore. Dock-hands were standing at the gangplank, ready to take it up. The band was playing.

Clouds which had blanketed the bay earlier in the morning were lightening somewhat, with patches of blue sky showing through. Streamers of colored paper furnished ribbons of color which stretched from passengers on the upper decks to friends who had gathered on the dock to say farewell. The edge of the wharf was lined with people calling out good-natured banter to those who were standing at the ship’s rail.