His voice crisped to a subtle sting on the last words; but it was nothing to the tightening that crawled over Chief Inspector Teal. It was as if the detective suddenly soared out of all his gnawing hesitations on a great expansion of sublime triumph. He seemed to grow bigger as his chest swelled, and his round face was red with ecstasy.

"Now I'll tell you why I'm laughing!" he blazed back. "I know how you got out of here without my men seeing you! That was something else I got from Quintana, because his men were watching this flat too. I know how you were wheeled out in a false beard before these things happened and how you were wheeled back just a little while ago! I know all about this precious Mr Joshua Pond, who's supposed to live in the flat next door. And I know that he doesn't exist! I know that the only Joshua Pond in this building is you! And that's what's going to put you where you belong!"

The detective's crescendo of exclamation marks ended in a falsetto squeak like a stabbed canary, but Teal was past caring. The exultation of conquest was singing in his head like strong drink. For once, at last, he had in his hands the final proof that would wreck the Saint's last fatal alibi. And Teal was glad of it. It was the moment for which he had lived more years than he wanted to remember, but it would atone for all of them.

"How's that going to do anything to me?" Simon asked abruptly.

"Because this Joshua Pond hasn't been out again since my men saw him come in. And I'm going right next door to ring his bell and see if he's there. And if he isn't there I'll have all the evidence I want!"

"But suppose he is?" said the Saint anxiously. "I don't know anything about him, but he might object to being disturbed—"

"If he's there," Teal answered recklessly, "I'll admit that I'm raving mad. I'll admit that I've been dreaming all night. But I shan't have to 1"

"Give Joshua my love," said the Saint softly. "Show him your tummy — he might like it."

He picked up another cigarette and glanced around at Patricia Holm and Geoffrey Graham as Teal flung himself out of the room. And his smile had the superb inimitable madness on which all his life was based.

Teal was already thumbing the bell of the next apartment. And the door opened.