"I am glad of that, at least. And now, as it seems I can do nothing more at present, I will return home. Watch Victor, Inez—he needs it, believe me. I will return at the earliest possible moment to-morrow."

So, in the chill gray of the fast-coming morning, Lady Helena, very heavy-hearted, returned to Powyss Place and her sick husband's bedside.

Meantime matters were really beginning to look dark for Miss Catheron. The superintendent of the district, Mr. Ferrick, was filling his note-book with very ominous information. She had loved Sir Victor—she had hated Sir Victor's wife—they had led a cat-and-dog life from the first—an hour before the murder they had had a violent quarrel—Lady Catheron had threatened to make her husband turn her out of the house on the morrow. At eight o'clock, Jane Pool had left the nursery with the baby, my lady peacefully asleep in her chair—the Eastern poniard on the table. At half-past eight, returning to arouse my lady, she had encountered Miss Inez coming out of the nursery, and Miss Inez had ordered her sharply away, telling her my lady was still asleep. A quarter of nine, Ellen, the maid, going to the room, found my lady stone dead, stabbed through the heart. Miss Inez, when summoned by Hooper, is ghastly pale at first, and hardly seems to know what she is doing or saying. A very pretty case of tragedy in high life, Superintendent Ferrick thinks, pursing up his lips with professional zest, and not the first murder jealousy has made fine ladies commit, either. Now if that Turkish dagger would only turn up.

Two policemen are sent quietly in search of it through the grounds. It isn't likely they'll find it, still it will do no harm to try. He finds out which are Miss Catheron's rooms, and keeps his official eye upon them. He goes through the house with the velvet tread of a cat. In the course of his wanderings everywhere, he brings up presently in the stables, and finds them untenanted, save by one lad, who sits solitary among the straw. He is rather a dull-looking youth, with a florid, vacant face at most times, but looking dazed and anxious just now. "Something on his mind," thinks the superintendent, and sits sociably down on a box beside him at once.

"Now, my man," Mr. Ferrick says, pleasantly, "and what is it that's troubling you? Out with it—every little's a help in a case like this."

The lad—his name is Jimmy—does not need pressing—his secret has been weighing uneasily upon him for the last hour or more, ever since he heard of the murder, in fact, and he pours his revelation into the superintendent's eager ear. His revelation is this:

Last evening, just about dusk, strolling by chance in the direction of the Laurel walk, he heard voices raised and angry in the walk—the voices of a man and a woman. He had peeped through the branches and seen my lady and a very tall man. No, it wasn't Sir Victor—it was a much bigger man, with long black curling hair. Didn't see his face. It was dark in there among the trees. Wasn't sure, but it struck him it might be the tall, black-avised man, who came first the night Sir Victor brought home my lady, and who had been seen skulking about the park once or twice since. Had heard a whisper, that the man was Miss Inez's brother—didn't know himself. All he did know was, that my lady and a man were quarrelling on the evening of the murder in the Laurel walk. What were they quarrelling about? Well, he couldn't catch their talk very well—it was about money he thought. The man wanted money and jewels, and my lady wouldn't give 'em. He threatened to do something or tell something; then she threatened to have him put in Chesholm jail if he did. He, Jimmy, though full of curiosity, was afraid the man would spring out and catch him, and so at that juncture he came away. There! that was all, if it did the gentleman any good, he was welcome to it.

It did the gentleman a world of good—it complicated matters beautifully. Five minutes ago the case looked dark as night for Miss Catheron—here was a rift in her sky. Who was this man—was it Miss Catheron's scapegrace brother? Jimmy could tell him nothing more. "If you wants to find out about Miss Inez' brother," said Jimmy, "you go to old Hooper. He knows. All I know is, that they say he was an uncommon bad lot; but old Hooper, he's knowed him ever since he was a young'un and lived here. If old Hooper says he wasn't here the night Sir Victor brought my lady home, don't you believe him—he was, and he's been seen off and on in the grounds since. The women folks in the servants' hall, they say, as how he must have been an old sweetheart of my lady's. You go to old Hooper and worrit it out of him."

Mr. Superintendent Ferrick went. How artfully he began his work, how delicately and skillfully he "pumped" old Hooper dry, no words can tell. Mr. Juan Catheron was an "uncommon bad lot," he had come to the house and forced an entrance into the dining-room the night of Lady Catheron's arrival—there had been a quarrel, and he had been compelled to leave. Bit by bit this was drawn from Mr. Hooper. Since then, Jackson, the head groom, and Edwards, the valet, had seen him hovering about the grounds watching the house.

Mr. Ferrick ponders these things in his heart, and is still. This vagabond, Juan Catheron, follows my lady to Catheron Royals, is expelled, haunts the grounds, and a man answering to his description is discovered quarrelling with my lady, demanding money, etc., two or three hours before the murder. The window of the room, in which she takes that fatal sleep, opens on the lawn; any one may enter who sees fit. No one is about. The Oriental dagger lies convenient to his hand on the table. "Here, now," says Mr. Ferrick to Mr. Ferrick, with a reflective frown, "which is guilty—the brother or sister?"