"Let us walk straight up," said Gimblet. "You can tell me as we go. I have, as you say, been a long while getting here, but it is fortunate that the day is fine. I hope it has not rained during the last thirty-six hours?" "I don't know," said the girl. "No; I believe it has been fine. But I haven't taken much notice what the weather has been like." She was disappointed and indignant that he should talk in this trivial strain, when her own heart was nearly bursting, and her every nerve stretched and tingling. She had pinned all her hopes on the arrival of the famous detective. Gimblet heard the change in her tone. "You think I am talking platitudes about the weather," he said quickly, "and you think I am unsympathetic for your distress; but, believe me, what I said is very much to the point. If it has not rained the murderer's footmarks will be very much more easily seen, and that is very important." "You don't know," said Juliet in a voice that trembled ominously. "They have found plenty of footmarks. The Glasgow detectives said they were Sir--Sir David Southern's. They found his gun too, not cleaned; and they say he did it, and they have taken him away, to--to prison." A sob escaped her, but she controlled herself with a great effort and went on: "You must prove that he didn't do it. I know he didn't. Anyone who knew him must know he didn't. Oh you must, you must, find the real murderer!" Gimblet was silent for a moment before this appeal. It was difficult to know what to say. He knew Macross well for a cautious, intelligent officer; if he had arrested Sir David Southern it seemed pretty certain that there was good evidence against that gentleman. On the other hand Lord Ashiel had seemed to think it likely that his death might wear an appearance calculated to mislead. Still Gimblet had a deep-rooted prejudice against holding out hopes he could not see a good chance of fulfilling, and he had so often been appealed to by distracted women to save their friend and "find the real murderer." "Will you not begin at the beginning?" he said at last. "I know how you came to be staying at Inverashiel, but I know nothing of what has happened since your arrival, except the bare fact of Lord Ashiel's death. Tell me every detail you can think of, but, first, who else was staying at the castle besides yourself? I suppose they have left now?"