"That was an afterthought," Mark admitted. "It was a tophole idea. After every one had gone upstairs, I crept down and got my Mannlicher from where I had hidden it, and took it to the gun-room, where I cleaned it and put it in its usual place. It was lucky for me that David had left his weapon dirty. It was jolly unlike him to do it. I was thinking what a good thing it was, and how well things looked like turning out--for I thought I could manage the girl if she was able to prove that she really was a McConachan--and it struck me I ought to be able to contrive that the business should look a bit blacker against poor old David. Every one knew he'd had a row with Uncle Douglas about his beastly dog, and if I could only manufacture a little more evidence against him I knew I should be pretty safe, one way and another. I was going back to the garden to put by the gardener's plank, when I thought of using his boots. It didn't take long to find them among all the boots used that day by the household, which were ranged in a row in the place where they clean them in the back premises. His bootmakers' name was in them. I took them, and when I got to the garden door I put them on, and went out and trampled about among the roses till I was pretty sure that even the blindest country bobby couldn't fail to notice the tracks I'd left, though of course I couldn't see them myself in the dark. Then I got the plank out of the hedge and put it away where I'd found it. After that, I took the boots back, and went to bed; and very glad I was to get there. Now you've heard the whole story." "How clever you are," murmured the girl. "There's no one like you," she said, "no one." Mark smiled rather fatuously. He evidently shared her opinion that his brains were something slightly out of the way. "And everything happened just as you'd planned," she went on admiringly. "They suspected Sir David from the first. I should have, myself, if I hadn't known it was you who had done it." "Yes," said Mark, "they suspected him, the silly idiots! They might have known he hasn't the initiative to do a thing like that. And the girl can't prove her relationship to Uncle Douglas, just as I expected. I thought there might be some difficulty about that. But I wish I could find the will he made in her favour. I should feel safer then, for she told me he said he'd worded it so that she should get the money whether she was proved his daughter or not. And who knows what other mad clauses he may have put in it. Lately, for some reason I could never make out, I felt sure he had changed towards me. He let fall a hint one day that his legacies to me were conditional on my good behaviour. I don't feel easy about it at all. Some one must have been telling him things--poisoning his mind. But I've hunted high and low, and found nothing. I'm sick of looking over musty old bills."