“I didn’t think so,” said Dr. Kantripp diffidently.

“Bruises, more likely,” said Dr. Curtis. “You don’t get hypostases there. Not with the way he’s lying.”

“They said, Fox, that he sat on the right-hand end of the seat?”

“Yes, sir.”

“Have a look at the left temple, would you, Curtis?”

Dr. Curtis began to take away the dressing over the left eye.

“You’re quite right, Alleyn,” said Dr. Kantripp. “There’s a cut on the temple under the bandage. I was going to show you. Yes, there it is.”

With a swift and delicate gesture Alleyn placed his long left hand across the staring right eye and the left socket. The heel of his hand was against the right side of the face, thumb downwards.

“There’s a sort of fancy steel fretwork affair in the wall of the lift,” said Fox. “With knobs on. There’s a bit of a smear on one of the knobs. It looks as if it had been wiped.”

“Does it, indeed?” Alleyn murmured and swiftly drew away his hand. “We’ll get him out of here,” he added.