Dismissing for a moment this latest mystery, I addressed Mr. Urquhart. "I have sent for you, sir, to request in the first place that here in Mr. Mackenzie's presence and in colder blood you will either withdraw or repeat and at least attempt to substantiate the charge you brought against him." "I adhere to it, sir, that there was cheating. To withdraw would be to utter a lie. Does he deny it?" I glanced at Mr. Mackenzie. "I deny that I cheated," said he sullenly. "Further," pursued Mr. Urquhart, "I repeat what I told you, sir. He _may_, while profiting by it have been unaware of the cheat. At the moment I thought it impossible; but I am willing to believe--" "_You_ are willing!" I broke in. "And pray, sir, what about me, his Colonel, and the rest of his brother officers? Have you the coolness to suggest--" But the full question was never put, and in this world it will never be answered. A bugle call, distant but clear, cut my sentence in half. It came from the direction of the Place d'Armes. A second bugle echoed, it from the height of the Montagne du Parc, and within a minute its note was taken up and answered across the darkness from quarter after quarter. We looked at one another in silence. "Business," said my brother at length, curtly and quietly. Already the rooms above us were astir. I heard windows thrown open, voices calling questions, feet running. "Yes," said I, "it is business at length, and for the while this inquiry must end. Captain Murray, look to your company. You, Major, see that the lads tumble out quick to the alarm-post. One moment!"--and Captain Murray halted with his hand on the door--"It is understood that for the present no word of to-night's affair passes our lips." I turned to Mr. Mackenzie and answered the question I read in the lad's eyes. "Yes, sir; for the present I take off your arrest. Get your sword. It shall be your good fortune to answer the enemy before answering me." To my amazement Mr. Urquhart interposed. He was, if possible, paler and more deeply agitated than before. "Sir, I entreat you not to allow Mr. Mackenzie to go. I have reasons--I was mistaken just now--" "Mistaken, sir?" "Not in what I saw. I refused to fight him--under a mistake. I thought--" But I cut his stammering short. "As for you," I said, "the most charitable construction I can put on your behaviour is to believe you mad. For the present you, too, are free to go and do your duty. Now leave me. Business presses, and I am sick and angry at the sight of you."