Later on in the afternoon, when Gimblet arrived at the castle, he was immediately shown into the presence of Lord Ashiel, who was pacing the smoking-room restlessly, a cigarette between his teeth. He looked pale and haggard, the strain of the last few days had evidently been too much for him.

Gimblet greeted him sympathetically.

"You have not found your uncle's will, I can see," he began, "and you are fretting at the idea of keeping his daughter out of her fortune. But set your mind at rest; we shall be able to put that right. Is she here, by the way?" he added, remembering Lady Ruth's anxiety.

"Here, of course not! What do you mean?" cried Mark, stopping suddenly in his walk.

"Well, I was sure she was not," Gimblet replied, "but I promised to ask. Lady Ruth is rather upset because Miss Byrne did not come in to lunch. I told her she had probably gone for a longer walk than had been her intention," he added soothingly, for Mark was looking at him with a disturbed expression.

He seemed relieved, however, by the detective's suggestion.

"Yes, no doubt, that would be the reason," he murmured, lighting a fresh cigarette, and throwing himself down in an easy-chair, with his hands clasped behind his head. "No, I haven't found any will, and there's not a corner left that I haven't turned inside out. I suppose he never really made it. Just talked about it, probably, as people are so fond of doing. And now I'm at a loose end; all alone in this big house with no one to speak to and nothing to do with myself. It's a beast of a day, or I should go out and try for a salmon, in self-defence. To-morrow I shall go South. And you, have you found out anything new about the murder yet?"