“ There was much haemorrhage,’ ” Alleyn chanted drearily, “ ‘and escape of brain matter.’ ”

“He eventually recovered all his faculties of body and mind…”

“ ‘… with the loss of the injured eye.’ I knew you’d flatten me with Phineas P. And what of Mr. J. Collyer Adam (Public Prosecutor, Madras) and his case of the man with the knife in his forehead?”

“Well,” said Dr. Curtis with a grin, “with those examples before you, what d’you mean by asking why he didn’t die sooner? For all we know, until I’ve had a peep inside, he might have survived to tell you ’oo done it and saved us all a night’s work.”

“He got a swinging great crack on the temple,” Alleyn observed.

“Yes. I was going to ask you how you account for it.”

“The smudge, inefficiently removed off the chromium steel boss in the lift wall, accounts for it. So, I fancy, do the bruises on the right temple and round the eyes, and the cut on the left temple, as well as a dent in the side of Lord W.’s bowler and the bloodstains on a pair of driving gloves we found in the lift. Henry Lamprey’s gloves, they are, as he very airily admitted. Michael saw them in the hall, so no doubt they were taken at the same time as the knife. I get a picture of a great buffet on the side of the head. Then I see a picture of a left hand laid thumb downwards across the eyes, with the heel of the hand against the walL While the left hand is still in position and the subject unconscious, the point of the skewer, held in the right hand and guided through the fingers of the left, completes a singularly nasty piece of work.”

“A bit conjectural, isn’t it?”

“Before they took the body away, Fox and I made an experiment. We stopped the lift at the uninhabited flat below this one and reconstructed the scene. Luckily rigor was not far advanced. The body fitted the marks exactly. The dent in the bowler tallies with a bit of chromium steel fancy work above the stain. Thompson’s taken some shots of it. The results should be illuminating and calculated to give a tender juryman convulsions. And here, I fancy, comes Miss Tinkerton.”

II