“From all accounts he was sitting in the right-hand corner with his head leaning against that steel grid affair and his bowler hat tilted over his face. Of course the lift’s been used since then. The doctor, for one, came up in it. As soon as our chaps came in they attended to that. Still, it’s a pity.”

“It is.” Alleyn peered at the steel fretwork of the wall. “There’s the smear you talked about on that bulge or knob or what-you-will.”

“Very fancy design, isn’t it, sir?”

“Very, Br’er Fox. Grapes, you see, mixed up with decorative lumps. Modern applied art. How tall was he?”

“Six foot and a half-inch,” said Fox immediately.

“Good. You’re six foot, aren’t you? Just sit at the other end, Foxkin. Yes. Yes, I fancy that if you sat there and I caught you a snorter on the right side of your head your left temple would miss that corresponding knob by half an inch or so. However, that’s altogether too vague. It looks as if we’ll have to get him in here to try. I see these knobs have got slight depressions in the surface. Look at our particular one. Somebody, as you capably observed, has wiped it. And the seat, as well. Not very proficiently. Bailey will have to deal with this. Hullo!”

Alleyn stooped and flashed his torch under the seat. “I suppose you’ve already spotted those, you old devil,” he observed.

“Yes, sir. I thought I’d leave them for you.”

“What delicacy! What tact!” Alleyn reached under the seat and drew out a pair of heavy driving gloves with long gauntlets. He and Fox squatted on the floor and examined them.

“Bloody,” said Fox.