Strange, I thought, but although I waited in the club nearly an hour, he did not put in an appearance. I called again at noon, and he had not come in, and again at two o'clock, but he had not even then made his appearance. Then I began to be anxious. I returned to the hotel, resolved to wait for a few hours longer. He might have altered his mind and gone to Eastbourne in search of Muriel; yet, had he done so, he would surely have telegraphed to me. About four o'clock, as I was passing through the big hall of the hotel, I heard a voice behind me utter a greeting in Italian, and turning in surprise, found Olinto, dressed in his best suit of black, standing hat in hand. In an instant I recollected what Jack had told me, and regarded him with some suspicion. "Signor Commendatore," he said in a low voice, as though fearing to be overheard, "may I be permitted to speak in private with you?" "Certainly," I said, and I took him in the lift up to my room. "I have come to warn you, signore," he said, when I had given him a seat. "Your enemies mean harm to you." "And who are they, pray?" I asked, biting my lips. "The same, I suppose, who prepared that ingenious trap in Lambeth?" "I am not here to reveal to you who they are, signore, only to warn you to have a care of yourself," was the Italian's reply. "Look here, Olinto!" I exclaimed determinedly, "I've had enough of this confounded mystery. Tell me the truth regarding the assassination of your poor wife up in Scotland." "Ah, signore!" he answered sadly in a changed voice, "I do not know. It was a plot. Someone represented me--but he was killed also. They believed they had struck me down," he added, with a bitter laugh. "Poor Armida's body was found concealed behind a rock on the opposite side of the wood. I saw it--ah!" he cried shuddering. "Then you are ignorant of the identity of your wife's assassin?" "Entirely." "Tell me one thing," I said. "Did Armida possess any trinket in the form of a little enameled cross--like a miniature cross of cavaliere?" "Yes; I gave it to her. I found it on the floor at the Mansion House, where I was engaged as odd waiter for a banquet. I know I ought to have given it up to the Lord Mayor's servants, but it was such a pretty little thing that I was tempted to keep it. It probably had fallen from the coat of one of the diplomatists dining there." I was silent. The faint suspicion that Oberg had been at that spot was now entirely removed. The only clue I had was satisfactorily accounted for. "Why do you ask, Signor Commendatore?" he added. "Because the cross was found at the spot, and was believed to have been dropped by the assassin," I said. The police had, it seemed, succeeded in discovering the unfortunate woman after all, and had found that she was his wife. "You know a man named Leithcourt?" I asked a few moments later. "Now, tell the truth. In this affair, Olinto, our interests are mutual, are they not?" He nodded, after a moment's hesitation.