"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 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..."