"The conspiracy against us both was one of extraordinary cunning and daring. Your rival was, I have since ascertained, a French spy. On the evening in question, Colonel Rossano, who was an old friend of my father's, arrived from Milan, having been entrusted with some plans of fortifications and other important and secret documents to take to the Ministry of War at Rome. The colonel intended to remain the night with us, but your rival, by some means, knew that the documents were in his possession, and resolved to secure them. Therefore he secreted himself, and when the officer entered the garden, he shot him, afterwards taking from his pockets the plans, together with a large sum in bank-notes. It was after committing this terrible deed that he sought me; and then, when I refused him, he plotted a desperate vengeance that he intended should fall upon us both. With villainous cunning he had already caused your name to be engraved on the revolver with which he took the colonel's life, and placed the weapon beside the body. Afterwards he proceeded to carry out the other portion of the foul plot that was so nearly successful." "What was that?" I asked, amazed at her story. "He followed my servant Guiseppe, bribed him to give him the letter I addressed to you, and, having read its contents, enclosed one of the bank-notes he had stolen from the murdered man. He intended that when the charge of assassination was made against you owing to the revolver, corroborative evidence would be furnished by the stolen note in your possession. Towards me he acted differently. You still have that little souvenir I gave you, I suppose? Strike a light, and I will show you something." I obeyed, and lit one of the candles, afterwards taking from my pocket the quaint little carved Amida, which I had kept carefully wrapped in a piece of chamois leather. "See! Look at this!" she said, as she screwed off the head of the idol. And then, holding out my hand, she emptied into my palm a piece of thin paper screwed up into the size of a nut. I spread it out, and found it was a plan of the submarine mines in Genoa harbour! "I had only a few days previously showed him this little image, and had quite innocently told him that it was hollow, and the head could be removed," she continued. "Therefore, during my absence from the room, he must have secreted the paper there for two reasons: firstly, to get rid of it for a time; and secondly, so that he could, if so desired, throw a terrible suspicion upon me as your friend and alleged accomplice." "But how do you know all this?" I inquired.