“That’s so, sir. Very peculiar. Fanciful. All the same there’s one or two bits that stick in my mind. Something about ‘night thickens’ and it goes on about birds flying into trees, and ‘good things of day begin to droop and drowse’ — and — er—”

“‘While night’s black agents to their prey do rouse.’ ”

“Ah. It’s the same, then. Gives you a sort of sensation, doesn’t it, sir?”

“Yes.”

“And there’s another remark that took my fancy. This chap Macbeth asks his wife, ‘What is the night?’ meaning what’s the time and she says ‘Almost at odds with morning, which is which.’ It’s the kind of way it’s put. They were a very nasty couple. Bad type. Superstitious, like most crooks. She was the worst of the two, in my opinion. Tried to fix the job so’s it’d look as if the servants had done it. Do you recollect that, sir?”

“Yes,” said Alleyn slowly, “yes.”

“Mind,” said the constable, warming a little, “I reckon if he hadn’t lost his nerve they’d have got away with it. No fingerprinting in those days, you see. And you know how it’d be, sir. You don’t expect people of their class to commit murder.”

“No.”

“No, you don’t. And with the weapons lying there beside these grooms or whatever they were, and so on, well the first thing anybody would have said was: ‘Here’s your birds.’ Not that there seemed to be anything like what you’d call an inquiry.”

“Not precisely,” said Alleyn.