“Yes. Anything wrong?”

“Yes, sir. Something terrible’s happened. I don’t know what it is, but…” Moffatt followed them up, leaving the door open behind him.

“Where is it?” Alleyn asked. “We’re all here. You’d better shut the door. Where’s the man on duty?”

“Mr. Campbell, sir? He’s upstairs, sir, and there’s a doctor there too, sir.”

“A doctor!” said Alleyn sharply.

“And there’s a policeman outside the room where his lordship’s lying. Something terrible—”

“We’ll go up,” said Alleyn. “How many floors?”

“Three, sir. And his lordship’s lying on the next floor. Her ladyship, sir, has been screaming something frightful to hear and…”

Alleyn was half-way up the first flight. The others followed him, Moffatt bleating in the rear. The fourth-floor landing was brightly lit. On the top stair Alleyn found a group of three. A uniformed nurse, white to the lips, was on the floor, propped against the stairhead. Above her stood Henry Lamprey and Roberta Grey. They, too, were deadly pale. As soon as she saw Alleyn the nurse said: “I’m quite all right and ready for duty. I don’t know what happened to me. It wasn’t natural. I’ve never slept on duty before, never. If the doctor wants me—”

“Where is the doctor?”