"There are others who are trying to find him," she said, "but I do not think that they will succeed. The young man who was here the other night, for instance."

"If I fail, I fail," I answered. "At any rate, I shall be doing something. I must go back to my brother's to-night, Felicia, because I have promised to stay with him. In a day or two I shall return to my rooms here, and I shall do my best to find out the meaning of your uncle's mysterious movements. It may seem impertinent to you to interfere in anybody else's concerns. I cannot help it. It is for your sake. The present position is impossible!"

"You are not staying here to-night?" she asked.

"To-night, no!" I answered. "I will let you know directly I return."

"There is one thing else, Capitaine Rotherby. Could you promise it to me, I wonder?"

"I will try," I answered.

"Do not quarrel any more, if you can help it," she begged, "with Louis!"

Her question forced a laugh from my lips. Quarrel with Louis, indeed! What more could I do in that direction? Then I frowned, in temporary annoyance. I hated to hear her speak of him as a person to be considered.

"Louis is a venomous little person," I said, "but I certainly should not quarrel with him more than I can help. I am, unfortunately, in his debt, or I should have dealt with him before now."

I glanced at the clock and jumped up. It was very much later than I had thought. She gave me her hands a little wistfully.