"What proofs will you give him?" "I will take him to the rue Chalgrin, and show him the secret passage made by Arsène Lupin's workmen,—while doing the work of which he had the control—between the houses numbered 40 and 42; the passage which you and he used two nights ago." "Well?" "I will then take Monsieur Destange to the house of Monsieur Detinan; we will descend the servant's stairway which was used by you and Arsène Lupin when you escaped from Ganimard, and we will search together the means of communication with the adjoining house, which fronts on the Boulevard des Batignolles, and not upon the rue Clapeyron." "Well?" "I will take Monsieur Destange to the château de Crozon, and it will be easy for him, who knows the nature of the work performed by Arsène Lupin in the restoration