"The turquoise was picked up by some one who saw me yesterday and who wishes to compromise me. Apart from M. Fauville and the detective sergeant, only two people saw me: Silvestre, the manservant, and Mme. Fauville. Consequently, as Silvestre is outside the question, I accuse Mme. Fauville of putting the turquoise in the safe."
M. Desmalions asked:
"Will you let me see the necklace, Madame?"
"Certainly. It is with my other jewels, in my wardrobe. I will go for it."
"Pray don't trouble, Madame. Does your maid know the necklace?"
"Quite well."
"In that case, Sergeant Mazeroux will tell her what is wanted."
Not a word was spoken during the few minutes for which Mazeroux was absent. Mme. Fauville seemed absorbed in her grief. M. Desmalions kept his eyes fixed on her.
The sergeant returned, carrying a very large box containing a number of jewel-cases and loose ornaments.
M. Desmalions found the necklace, examined it, and realized, in fact, that the stones did not resemble the turquoise and that none of them was missing. But, on separating two jewel cases in order to take out a tiara which also contained blue stones, he made a gesture of surprise.
"What are these two keys?" he asked, pointing to two keys identical in shape and size with those which opened the lock and the bolt of the garden door.
