“Yes, of course, but after all——”

“Go on,” said Louis, smilingly.

“After all,” I continued, “we must know what you are going to fight for. We cannot put two men up to cut and slash each other without having some ground for the encounter.”

“Very well, let me tell you in as few words as possible, the head and front of the offending.

“When I first arrived in Paris I was introduced by a friend of mine, a captain in the navy, to his wife. She was young and beautiful. She made a deep impression upon me, and as I was really afraid I might end by falling in love with her, I very rarely went to my friend’s house, although frequently pressed to do so.

“My friend was rather piqued at my absence, and at last I frankly told him the truth, that his wife being so charming I was rather afraid to go to his house. He laughed, shook hands with me, and asked me, even pressed me, to dine with him that same evening.

“ ‘My dear Louis,’ said he, after dinner. ‘In a few weeks I shall sail for Mexico. I may be absent three months, perhaps six—or longer. We sailors sometimes know when we shall sail, but never when we may return. To you, I commend Emily during my absence. Emily, I beg of you to look upon M. Louis de Franchi as a brother.’

“The lady gave me her hand in token of agreement. I was stupefied! I did not know what to say, and I daresay I appeared very stupid to my future sister.

“Three weeks after this my friend sailed.