“You sound doubtful.”

“I am.”

“So’s Gardener. He doesn’t think Surbonadier did it.”

“What? You’ve seen him?”

“Yes. He’s got the wind up now and thinks you’re going to pull him in.”

“He doesn’t think Surbonadier wrote the article?”

“He said so, quite honestly, though I’m sure he understood how the theory would point to Saint rather than to himself. All the same, I got the feeling he really believed there might be something in it.”

“Tell me exactly what was said.”

Nigel repeated, as closely as he could, his conversation with Gardener. Rather reluctantly he described Miss Vaughan’s appearance and her unfinished sentence.

“What was she going to warn him about?” he wondered.

“Can’t you guess?” Alleyn asked.

“No, I can not.”

“Think. Think. Think.”

“Oh, shut up,” said Nigel crossly. “You talk like a Thorndyke.”

“Why not? I wish I could sleuth like one. I’ll have to have a stab at it, too. Dig up some old dirt at Cambridge.”

“Do you think there’s anything in the suicide theory?”

“No. He hadn’t the guts. I suppose you realize the significance of Gardener’s information about the drug coterie at Cambridge?”

“It suggests that Surbonadier might be ‘in the know,’ that way as well as any other, about his uncle’s goings on,” said Nigel confusedly.

“I must go,” said Alleyn, looking at his watch.

“Whereto?”

“The deceased’s flat.”

“May I come, too?”

“You? I don’t know. You’re rather a prejudiced party in this case.”

“You mean about Felix?”

“Yes. If you come you’ll have to give me your word you’ll keep quiet about it.”

“I will, I swear.”

“Not a word to anyone. Nor with arms encumbered thus or this head-shake, or by pronouncing of some doubtful phrase—”

“No — no — no.”

“Swear!”

“I swear.”

“All right. Let’s have lunch and go.”

They lunched together at Alleyn’s flat, and, after a liqueur and a cigarette, made their way to Surbonadier’s rooms in Gerald’s Row. A police constable was on guard there and produced the keys. At the door Alleyn turned to Nigel.

“I’ve little idea,” he said, “what we shall find in here. It’s an ugly case. Are you sure you wouldn’t rather keep out of it?”

“How you do go on,” said Nigel. “I’m in on the deal.”

“So be it. Here we go.” He unlocked the door and they walked in.

The flat comprised four rooms and a bathroom and kitchenette, all opening on the right from a passage that ran their length. The first was Surbonadier’s bedroom and the second a sitting-room with folding doors leading to a small dining-room. The kitchenette and bathroom came next and another bedroom at the end.. This seemed to be unused, and was filled with trucks, boxes, and odds and ends of furniture. The flats were served by a married couple and their son, who all lived in the basement. Alleyn, after a glance at the small bedroom, sighed and rang up the Yard, suggesting that Inspector Fox or Detective Bailey should come and help. The sitting-room was luxuriously and rather floridly furnished. A framed supplement from La Vie Parisienne was a striking note above the sideboard. The cushions, of which there were many, were orange and purple. Alleyn sniffed distastefully.

“May as well begin in here,” he said. “He would have a satinwood desk, wouldn’t he? Disgusting object.”

He produced a bunch of keys, selected one, and fitted it in the lock.

“Are those his keys?” asked Nigel.

“They are, indeed.”

The lock clicked and Alleyn let down the front of the desk. A conglomerate welter of paper fell forward and spilled on to the floor.

“Oh, Lord! Come on, Bathgate. Bills in one pile, receipts in another. Circulars here. Letters there. Read everything and tell me if you strike anything interesting. Wait a moment. You’d better hand over all private letters to me. Here we go. Try and get the bills into chronological order, will you?”

There were a great many bills, and the separate accounts had been sent in a great many times, with added reminders that began obsequiously and worked their way through the humble, the plaintive, the reproachful, and the exasperated tenor, until they reached the final and threatening note that indicates “Immediate proceedings.” These, however, never appeared to eventuate, and after half an hour’s work Nigel made a discovery.

“I say, Alleyn,” he said. “He paid all his bills about a year ago, when the shops threatened to dun him, and, as far as I can see, he hasn’t paid one since, and they’re all threatening to dun him again! I suppose old Saint must have made him a yearly allowance!”

“Old Saint says he made Surbonadier no allowance. He cleared up his debts at Cambridge, gave him a start on the stage, and intimated it was up to little Arthur.”

“Really? Well, he was evidently expecting something to come in as far as one can judge by the letters from the shops.”

“What did the total of his last pay-out amount to?”

“Wait a bit.”

Nigel did some feverish sums, swore under his breath, began again, and finally said, triumphantly: ‘

“Two thousand pounds. That’s what he paid out last May and he owes about the same amount again now.”

“What’s that you’ve got?” asked Alleyn.

“It’s his pass-book. He’s overdrawn. Let me see now. May, last year. There’s no note of any large sum to his credit. It must have been cash. No, by Jove— here it is. Two thousand paid in on the twenty-fifth of May last year.”

“I see,” said Alleyn thoughtfully. “I see.”

“Doesn’t that look like blackmail money?”

“It does.”

“From Saint. I bet it was from Saint.”

“Maybe.”

“You sound dubious.”

“I am. Here’s old Fox.”

Inspector Fox heard the news without enthusiasm.

“He’s still wedded to Props,” said Alleyn. “Let’s get on with the horrid job.”

“Deceased seems to have kept every letter that was ever sent to him,” said Fox. “Here’s a little pile from somebody called Steff.”

“Steff?” echoed Alleyn sharply. “Let me see.”

He took the letters and walked to the window with them. He stood very still, glancing swiftly at page after page, and placing each face downwards on the sill as he finished it.

“A pig of a man,” he said suddenly.

“That’s what Felix called him,” remarked Nigel.

“So she told me.”

“She?”

“Stephanie — Vaughan.”

“Steff — oh, I see,” said Nigel eagerly. “The letters are from her.”

“Oh, Lord,” said Alleyn, looking at him wearily, “you’re there, are you?”

“Is there anything useful, sir?” asked Fox. “There’s a good deal that’s painful. They start off in her best leading-lady manner — all ecstasy and style, and fashionable dalliance. Then he must have shown up in his true colours. She is horrified by something, but still rather mannered and flowery. She keeps it up until about a week — no — two days ago. Then there are two little notes. ‘Please let’s stop, Arthur. I’m sorry. I can’t help it if I’ve changed,’ and the signature. That was written two days ago. The last, which is in a different key, was actually sent yesterday morning.”

“Carrying on with him and Mr. Gardener together, seemingly,” said Fox; “but I don’t see that it helps.”

“I’m afraid it does help a little,” Alleyn rejoined. “Ah well — on with the hunt.”

At last the contents of the desk were exhausted, and Alleyn led them to the spare bedroom, where the search began again and went on wearily. The Yard men were terribly thorough. Finally they unearthed an old trunk that had been put away in the wardrobe. Nigel switched the lights on and drew the curtains. It was already beginning to get dark in the room. Alleyn opened the trunk. Here they found letters from a great many women, but beyond throwing a little extra light on Mr. Surbonadier’s unsavoury character, they were of no value.

At the bottom were two old newspapers, carefully folded. Alleyn pounced on one, shook it open, and folded it back. Fox and Nigel looked over his shoulder and read in flaring capitals the single word “Cocaine!” and underneath: “Amazing revelation of the illicit drug trade. Fool’s Paradise — and after.”