"That's just what I must do. I must think," I said. "Perhaps meanwhile the police will make a lucky stroke If so, you'll owe me nothing. If they don't——"

"They won't—I feel they won't!" my sister-in-law sobbed.

Suddenly I had become the sole person of importance in her world. She pinned her one forlorn hope to me, like a flag nailed to a mast in a storm. And I—saw a picture before my mind's eye of a dark figure in a boat, putting on a thing that looked like a diver's helmet. Queer, that—very queer!

*****

So utterly absorbed was I in my new-born theory and in trying to work it out, that for the first time since I met and loved her I ceased consciously to think of Maida. Of course she was the incentive. If I put myself into Haslemere's service, I was working for her: to earn their gratitude, and lay their payment at her feet. Far away in the dimmest background of my brain was the impression that I was a clever fellow: that I was being marvellously intelligent: and at that moment I was more of a fool than I had ever been in my life. I thought I saw Rameses' hand moving in the shadows, using my brother and his wife as pawns in his game of chess. Yet it didn't occur to my mind that he was using me also: that he had pushed me far along the board, for his convenience, while I believed myself acting in my own interests and Maida's. I had flattered myself that my white queen was safe on the square where I had placed her, guarded by knight, bishop and castle. Yet while I went on with the game at a far end of the board, Rameses said "Check!" Another move, and it would be checkmate.

I was gone longer than Maida had expected, but she was not anxious. The yacht at anchor, lay in sight of the towers Which I had pointed out the night before, rising above a dusky cloud of trees. From Maida's deck-chair she could see them against the sky; and she could have seen the landing-place where I had gone ashore, had it not been hidden behind a miniature promontory. She tried to read, but it was hard to concentrate her mind on any book, while her future was being decided. In spite of herself, she would find her eyes wandering from the page and focussing on the little green promontory that screened the landing. At any moment I might appear from behind those rocks and bushes.

Suddenly, just as she had contrived to lose herself in a poem of Rupert Brooke's, the throb of a motor-boat caught her ear. She glanced eagerly up, to see a small automobile craft rounding the promontory. Apparently it had come from the private landing-place of Hasletowers, but the girl could not be certain of this until she had made sure it was headed for the yacht. Presently it had stopped alongside, and Maida saw that it had on board a man and a boy. The man, in a yachting cap and thick coat of the "pea-jacket" variety, absorbed himself deeply in the engine. What he was doing Maida neither knew nor cared; but it took his whole attention. He humped his back over his work and had not even the human curiosity to look up. It was the boy who hailed the Lily Maid, and announced that he had a message for Lady John Hasle from her sister-in-law, Lady Haslemere. It was a verbal message, which he had been ordered to deliver himself; and three minutes later he was on deck carrying out his duty.

"If you please, m'lady, the Marquis and Marchioness of Haslemere send their best compliments, and would you favour them by going in this boat to meet her ladyship on board the yacht of a friend? You will be joined a little later by the Marquis, and Lord John Hasle, who are at the house, kept by important business."

"I don't understand," Maida hesitated. "My hus—Lord John went on shore some time ago. I thought—was Lady Haslemere not at home after all?"

"That's it, m'lady," briskly explained the lad. "She was away on board this yacht I'm speaking of. Her ladyship hasn't been well—a bit of an invalid, or she'd come to you. But Lord John Hasle thought you might not mind——"