“But, sir, this man is surely not the buffoon, May,” replied the young detective.

“No, certainly not,” responded M. Segmuller; “we must, therefore, decide upon some plan of action.” He smiled kindly, and added, in a friendly voice: “It was unnecessary to tell you that, Monsieur Lecoq. Quite unnecessary, since to you belongs the honor of having detected this fraud. As for myself, I confess, that if I had not been warned in advance, I should have been the dupe of this clever artist’s talent.”

The young detective bowed; a blush of modesty tinged his cheeks, but a gleam of pleased vanity sparkled in his eyes. What a difference between this friendly, benevolent magistrate and M. d’Escorval, so taciturn and haughty. This man, at least, understood, appreciated, and encouraged him; and it was with a common theory and an equal ardor that they were about to devote themselves to a search for the truth. Scarcely had Lecoq allowed these thoughts to flit across his mind than he reflected that his satisfaction was, after all, a trifle premature, and that success was still extremely doubtful. With this chilling conclusion, presence of mind returned. Turning toward the magistrate, he exclaimed: “You will recollect, sir, that the Widow Chupin mentioned a son of hers, a certain Polyte—”

“Yes.”

“Why not question him? He must know all the frequenters of the Poivriere, and might perhaps give us valuable information regarding Gustave, Lacheneur, and the murderer himself. As he is not in solitary confinement, he has probably heard of his mother’s arrest; but it seems to me impossible that he should suspect our present perplexity.”

“Ah! you are a hundred times right!” exclaimed the magistrate. “I ought to have thought of that myself. In his position he can scarcely have been tampered with as yet, and I’ll have him up here to-morrow morning; I will also question his wife.”

Turning to his clerk, M. Segmuller added: “Quick, Goguet, prepare a summons in the name of the wife of Hippolyte Chupin, and address an order to the governor of the Depot to produce her husband!”

But night was coming on. It was already too dark to see to write, and accordingly the clerk rang the bell for lights. Just as the messenger who brought the lamps turned to leave the room, a rap was heard at the door. Immediately afterward the governor of the Depot entered.

During the past twenty-four hours this worthy functionary had been greatly perplexed concerning the mysterious prisoner he had placed in secret cell No. 3, and he now came to the magistrate for advice regarding him. “I come to ask,” said he, “if I am still to retain the prisoner May in solitary confinement?”

“Yes.”