He turned from her with quivering lips and moistened eyes as he made this appeal.

"I don't want to torture you," exclaimed Margaret; "but I can't help my face telling what is in my heart--that is, when I am taken off my guard, as I am at this moment. Why, oh! why did you give that promise? Why did I let you out of my sight? No man is fit to be trusted alone--no man, no man! If I hadn't left my Philip's side on that fatal night, we should have been together to-day. My darling! my darling!" Her tears began to flow here, but she checked them sternly, and said, "I mustn't wander. I have something else to think of--something else to do. I have to repay you for all your goodness to me and him, and if a living woman can do it, I will. Courage, Margaret, courage! Set your wits to work, and prove yourself a match for the wily old worldling."

She paced to and fro in her excitement, and Mr. Hart waited with gnawing impatience for an explanation. She gave it him presently.

"Listen. This girl for whom your old friend's son entertains some sort of a fancy----"

"Yes, yes, Margaret."

"And who is far below him in station, and in every way unworthy of him----"

"Yes, yes; go on."

"Is your daughter Lucy. Is our darling girl Lucy, whose heart has been very nearly broken because she feared her lover had deserted her."

[CHAPTER X.]

THE THEORY OF FRIENDSHIP.