Clarisse wrung her hands and shivered from head to foot. What suffering can compare with that of a mother trembling for the head of her son? Stirred with pity, Lupin said:

“We shall save him. Of that there is not the shadow of a doubt. But, it is necessary that I should know all the details. Finish your story, please. How did you know, on the same night, what had happened at Enghien?”

She mastered herself and, with a face wrung with fevered anguish, replied:

“Through two of your accomplices, or rather two accomplices of Vaucheray, to whom they were wholly devoted and who had chosen them to row the boats.”

“The two men outside: the Growler and the Masher?”

“Yes. On your return from the villa, when you landed after being pursued on the lake by the commissary of police, you said a few words to them, by way of explanation, as you went to your car. Mad with fright, they rushed to my place, where they had been before, and told me the hideous news. Gilbert was in prison! Oh, what an awful night! What was I to do? Look for you? Certainly; and implore your assistance. But where was I to find you?... It was then that the two whom you call the Growler and the Masher, driven into a corner by circumstances, decided to tell me of the part played by Vaucheray, his ambitions, his plan, which had long been ripening....”

“To get rid of me, I suppose?” said Lupin, with a grin.

“Yes. As Gilbert possessed your complete confidence, Vaucheray watched him and, in this way, got to know all the places which you live at. A few days more and, owning the crystal stopper, holding the list of the Twenty-seven, inheriting all Daubrecq’s power, he would have delivered you to the police, without compromising a single member of your gang, which he looked upon as thenceforth his.”

“The ass!” muttered Lupin. “A muddler like that!” And he added, “So the panels of the doors....”

“Were cut out by his instructions, in anticipation of the contest on which he was embarking against you and against Daubrecq, at whose house he did the same thing. He had under his orders a sort of acrobat, an extraordinarily thin dwarf, who was able to wriggle through those apertures and who thus detected all your correspondence and all your secrets. That is what his two friends revealed to me. I at once conceived the idea of saving my elder son by making use of his brother, my little Jacques, who is himself so slight and so intelligent, so plucky, as you have seen. We set out that night. Acting on the information of my companions, I went to Gilbert’s rooms and found the keys of your flat in the Rue Matignon, where it appeared that you were to sleep. Unfortunately, I changed my mind on the way and thought much less of asking for your help than of recovering the crystal stopper, which, if it had been discovered at Enghien, must obviously be at your flat. I was right in my calculations. In a few minutes, my little Jacques, who had slipped into your bedroom, brought it to me. I went away quivering with hope. Mistress in my turn of the talisman, keeping it to myself, without telling Prasville, I had absolute power over Daubrecq. I could make him do all that I wanted; he would become the slave of my will and, instructed by me, would take every step in Gilbert’s favour and obtain that he should be given the means of escape or else that he should not be sentenced. It meant my boy’s safety.”