Helen bent forward with her elbows resting on the rail, her hands clasped under her chin. The lamplight fell full upon her slightly lifted head, and upon her shoulders, over which lay a filmy veil. She hummed the boy's song dreamily for a moment while I watched her. Had she one mood for the day and another for the night? I had last seen her that afternoon after an hour of tennis, at which she was expert, and she had run away through Glenarm gate with a taunt for my defeat; but now the spirit of stars and of all earth's silent things was upon her. I looked twice and thrice at her clearly outlined profile, at the brow with its point of dark hair, at the hand whereon the emerald was clearly distinguishable, and satisfied myself that there could be no mistake about her. "You grow bold," I said, anxious to hear her voice. "You don't mind the pickets a bit." "No. I'm quite superior to walls and fences. You have heard of those East Indians who appear and disappear through closed doors; well, we'll assume that I had one of those fellows for an ancestor! It will save the trouble of trying to account for my exits and entrances. I will tell you in confidence, Mr. Donovan, that I don't like to be obliged to account for myself!" She sat back in the chair and folded her arms. I had not referred in any way to her transaction with Gillespie; I had never intimated even remotely that I knew of her meeting with the infatuated young fellow on St. Agatha's pier; and I felt that those incidents were ancient history. "It was corking hot this afternoon. I hope you didn't have too much tennis." "No; it was pretty enough fun," she remarked, with so little enthusiasm that I laughed. "You don't seem to recall your victory with particular pleasure. It seems to me that I am the one to be shy of the subject. How did that score stand?" "I really forget--I honestly do," she laughed. "That's certainly generous; but don't you remember, as we walked along toward the gate after the game, that you said--" "Oh, I can't allow that at all! What I said yesterday or to-day is of no importance now. And particularly at night I am likely to be weak-minded, and my memory is poorer then than at any other time." "I am fortunate in having an excellent memory." "For example?" "For example, you are not always the same; you were different this afternoon; and I must go back to our meeting by the seat on the bluff, for the Miss Holbrook of to-night." "That's all in your imagination, Mr. Donovan. Now, if you wanted to prove that I'm really--" "Helen Holbrook," I supplied, glad of a chance to speak her name. "If you wanted to prove that I am who I am," she continued, with new animation, as though at last something interested her, "how should you go about it?" "Please ask me something difficult! There is, there could be, only one woman as fair, as interesting, as wholly charming."