"Go ahead, old boy," thought Lupin, "cudgel your brains: you'll never spot it! Ah, if we had asked for Gilbert's pardon only, as Clarisse wished, you might have twigged the secret! But Vaucheray, that brute of a Vaucheray, there really could not be the least bond between Mme. Mergy and him.... Aha, by Jingo, it's my turn now!... He's watching me ... The inward soliloquy is turning upon myself... 'I wonder who that M. Nicole can be? Why has that little provincial usher devoted himself body and soul to Clarisse Mergy? Who is that old bore, if the truth were known? I made a mistake in not inquiring... I must look into this.... I must rip off the beggar's mask. For, after all, it's not natural that a man should take so much trouble about a matter in which he is not directly interested. Why should he also wish to save Gilbert and Vaucheray? Why? Why should he? ... " Lupin turned his head away. "Look out!... Look out!... There's a notion passing through that red-tape-merchant's skull: a confused notion which he can't put into words. Hang it all, he mustn't suspect M. Lupin under M. Nicole! The thing's complicated enough enough as it is, in all conscience!...

But there was a welcome interruption. Prasville's secretary came to say that the audience would take place in an hour's time.

"Very well. Thank you," said Prasville. "That will do."

And, resuming the interview, with no further circumlocution, speaking like a man who means to put a thing through, he declared:

"I think that we shall be able to manage it. But, first of all, so that I may do what I have undertaken to do, I want more precise information, fuller details. Where was the paper?"

"In the crystal stopper, as we thought," said Mme. Mergy.

"And where was the crystal stopper?"

"In an object which Daubrecq came and fetched, a few days ago, from the writing-desk in his study in the Square Lamartine, an object which I took from him yesterday."

"What sort of object?"

"Simply a packet of tobacco, Maryland tobacco, which used to lie about on the desk."

Prasville was petrified. He muttered, guilelessly:

"Oh, if I had only known! I've had my hand on that packet of Maryland a dozen times! How stupid of me!"

"What does it matter?" said Clarisse. "The great thing is that the discovery is made."

Prasville pulled a face which implied that the discovery would have been much pleasanter if he himself had made it. Then he asked:

"So you have the list?"

"Yes."

"Yes."

"Show it to me."

And, when Clarisse hesitated, he added:

"Oh, please, don't be afraid! The list belongs to you, and I will give it back to you. But you must understand that I cannot take the step in question without making certain."

Clarisse consulted M. Nicole with a glance which did not escape Prasville. Then she said:

"Here it is."

He seized the scrap of paper with a certain excitement, examined it and almost immediately said:

"Yes, yes... the secretary's writing: I recognize it.... And the signature of the chairman of the company: the signature in red.... Besides, I have other proofs.... For instance, the torn piece which completes the left-hand top corner of this sheet..."

“Why him? Why not us?”

“Because it was in my mind to put that little test which answered so admirably. I fear you would not have gone so far.”

The inspector smiled.

“Well, maybe not. I understand that I have your word, Mr. Holmes, that you step right out of the case now and that you turn all your results over to us.”

“Certainly, that is always my custom.”

“Well, in the name of the force I thank you. It seems a clear case, as you put it, and there can’t be much difficulty over the bodies.”

“I’ll show you a grim little bit of evidence,” said Holmes, “and I am sure Amberley himself never observed it. You’ll get results, Inspector, by always putting yourself in the other fellow’s place, and thinking what you would do yourself. It takes some imagination, but it pays. Now, we will suppose that you were shut up in this little room, had not two minutes to live, but wanted to get even with the fiend who was probably mocking at you from the other side of the door. What would you do?”

“Write a message.”

“Exactly. You would like to tell people how you died. No use writing on paper. That would be seen. If you wrote on the wall someone might rest upon it. Now, look here! Just above the skirting is scribbled with a purple indelible pencil: ‘We we —’ That’s all.’’

“What do you make of that?”

“Well, it’s only a foot above the ground. The poor devil was on the floor dying when he wrote it. He lost his senses before he could finish.”

“He was writing, ‘We were murdered.’ ”

“That’s how I read it. If you find an indelible pencil on the body —”

“We’ll look out for it, you may be sure. But those securities? Clearly there was no robbery at all. And yet he did possess those bonds. We verified that.”

“You may be sure he has them hidden in a safe place. When the whole elopement had passed into history, he would suddenly discover them and announce that the guilty couple had relented and sent back the plunder or had dropped it on the way.”

“You certainly seem to have met every difficulty,” said the inspector. “Of course, he was bound to call us in, but why he should have gone to you I can’t understand.”

“Pure swank!” Holmes answered. “He felt so clever and so sure of himself that he imagined no one could touch him. He could say to any suspicious neighbour, ‘Look at the steps I have taken. I have consulted not only the police but even Sherlock Holmes.’ ”

The inspector laughed.

“We must forgive you your ‘even,’ Mr. Holmes,” said he “it’s as workmanlike a job as I can remember.”

A couple of days later my friend tossed across to me a copy of the bi-weekly North Surrey Observer. Under a series of flaming headlines, which began with “The Haven Horror” and ended with “Brilliant Police Investigation,” there was a packed column of print which gave the first consecutive account of the affair. The concluding paragraph is typical of the whole. It ran thus: