"And what proofs will you give him?"
"I shall take him to the Rue Chalgrin and show him the passage which Arsène Lupin, when managing the works, made his men construct between Nos. 40 and 42, the passage employed by the two of you on the night before last."
"Next?"
"Next, I shall take M. Destange to Maître Detinan's. We will go down the servants' staircase which you ran down, with Arsène Lupin, to escape Ganimard. And we will both look for the doubtless similar means of communication with the next house, which has its entrance on the Boulevard des Batignolles and not in the Rue Clapeyron."
"Next?"
"Next, I shall take M. Destange to the Château de Crozon and it will be easy for him, who knows the nature of the works executed by Arsène Lupin at the time of the restoration of the Château, to discover the secret passages which Arsène Lupin made his men construct. He will find that these passages enabled the blonde lady to enter Madame de Crozon's room at night and take the blue diamond from the chimney and, a fortnight later, to enter Herr Bleichen's room and hide the blue diamond at the bottom of a flask ... a rather queer thing to do, I admit: perhaps it was a woman's petty vengeance; I do not know and it makes no difference."
"Next?"
"Next," said Holmlock Shears, in a more serious voice, "I shall take M. Destange to 134, Avenue Henri-Martin, and together we will try to discover how Baron d'Hautrec...."
"Hush, hush!" stammered the girl, in sudden dismay. "You must not...! Do you dare to say it was I...? Do you accuse me...?"
"I accuse you of killing Baron d'Hautrec."