“Ah, there is the mistake! I for a long time believed Lagors to be the principal person, when, in fact, he is not. Yesterday, in a dispute between them, the forge-master said to his dear friend, ‘And, above all things, my friend, I would advise you not to resist me, for if you do I will crush you to atoms.’ That explains all. The elegant Lagors is not the lover of Mme. Fauvel, but the tool of Clameran. Besides, did our first suppositions account for the resigned obedience of Madeleine? It is Clameran, and not Lagors, whom Madeleine obeys.”

Prosper began to remonstrate.

M. Verduret shrugged his shoulders. To convince Prosper he had only to utter one word: to tell him that three hours ago Clameran had announced his intended marriage with Madeleine; but he did not.

“Clameran,” he continued, “Clameran alone has Mme. Fauvel in his power. Now, the question is, what is the secret of this terrible influence he has gained over her? I have positive proof that they have not met since their early youth until fifteen months ago; and, as Mme. Fauvel’s reputation has always been above the reach of slander, we must seek in the past for the cause of her resigned obedience to his will.”

“We can never discover it,” said Prosper mournfully.

“We can discover it as soon as we know Clameran’s past life. Ah, to-night he turned as white as a sheet when I mentioned his brother Gaston’s name. And then I remembered that Gaston died suddenly, while his brother Louis was making a visit.”

“Do you think he was murdered?”

“I think the men who tried to assassinate me would do anything. The robbery, my friend, has now become a secondary detail. It is quite easily explained, and, if that were all to be accounted for, I would say to you, My task is done, let us go ask the judge of instruction for a warrant of arrest.”

Prosper started up with sparkling eyes.

“Ah, you know—is it possible?”