Two or three of the others were silent. There was present in their minds the story of The Hold, and the admitted fact of insanity in the family of Ronald Mervyn, which was in close connection with the Carnes. Had it been any one else they, too, would have disbelieved the possibility of Ronald Mervyn having murdered Margaret Carne. As it was, they doubted: there had been other murders in the history of the Carnes. But no one gave utterance to these thoughts, they were all friends or acquaintances of the Mervyn family. Ronald might yet be able to clear himself completely. At any rate, at present no one was inclined to admit that there could be any doubt of his innocence. "Well, what do you think, doctor, now?" Lieutenant Gulston asked his friend, as separated from the rest they strolled across the garden. "I don't quite know what to think," Dr. Mackenzie said, after a pause. "No?" Gulston said in surprise. "Why it seems to me as clear as the sun at noon-day. What I heard seemed pretty conclusive. Now there is the confirmation of the finding of the glove, and this cock and bull story of his riding about for hours and not knowing where he was." "Yes, I give due weight to these things," the doctor said, after another pause, "and admit that they constitute formidable circumstantial evidence. I can't account for the glove being found there. I admit that is certainly an awkward fact to get over. The ride I regard as unfortunate rather than damnatory, especially if, as he says, his fellow officers can prove that at times, when upset, he was in the habit of going off for hours on horseback." "But who else could have done it, Mackenzie? You see the evidence of the doctor went to show that she was murdered when asleep; no common burglar would have taken life needlessly, and have run the risk of hanging; the whole thing points to the fact that it was done out of revenge or out of ill-feeling of some sort, and has it not been shown that there is not a soul in the world except Mervyn who had a shadow of ill-feeling against her?" "No, that has not been shown," the doctor said, quietly. "No one was her enemy, so far as the witnesses who were asked knew; but that is a very different thing; it's a very difficult thing to prove that any one in the world has no enemies. Miss Carne may have had some; some servant may have been discharged upon her complaint, she may have given deep offence to some one or other. There is never any saying." "Of course that is possible," said the lieutenant again, "but the evidence all goes against one man, who is known to have an enmity against her, and who has, to say the least of it, a taint of insanity in his blood. What are the grounds on which you doubt?"