"In your opinion," responded Harborough, doggedly. "Not in mine! There's law in this country. You can arrest me, if you like--but you'll have your work set to prove that I killed yon old man. No, sir! But----" here he paused, and looking round him, laughed almost maliciously "--but I'll tell you what I'll do," he went on. "I'll tell you this, if it'll do you any good--if I liked to say the word, I could prove my innocence down to the ground! There!" "And you won't say that word?" asked Mallalieu. "I shan't! Why? Because it's not necessary. Why!" demanded Harborough, laughing with an expresssion of genuine contempt. "What is there against me? Naught! As I say, there's law in this country--there's such a thing as a jury. Do you believe that any jury would convict a man on what you've got? It's utter nonsense!" The constable who had come down from the Shawl with Bent and Brereton had for some time been endeavouring to catch the eye of the superintendent. Succeeding in his attempts at last, he beckoned that official into a quiet corner of the room, and turning his back on the group near the fireplace, pulled something out of his pocket. The two men bent over it, and the constable began to talk in whispers. Mallalieu meanwhile was eyeing Harborough in his stealthy, steady fashion. He looked as if he was reckoning him up. "Well, my lad," he observed at last. "You're making a mistake. If you can't or won't tell what you've been doing with yourself between eight last night and six this morning, why, then----" The superintendent came back, holding something in his hand. He, too, looked at Harborough. "Will you hold up your left foot?--turn the sole up," he asked. "Just to see--something." Harborough complied, readily, but with obvious scornful impatience. And when he had shown the sole of the left foot, the superintendent opened his hand and revealed a small crescent-shaped bit of bright steel. "That's off the toe of your boot, Harborough," he said. "You know it is! And it's been picked up--just now, as it were--where this affair happened. You must have lost it there during the last few hours, because it's quite bright--not a speck of rust on it, you see. What do you say to that, now?" "Naught!" retorted Harborough, defiantly. "It is mine, of course--I noticed it was working loose yesterday. And if it was picked up in that wood, what then? I passed through there last night on my way to--where I was going. God--you don't mean to say you'd set a man's life on bits o'things like that!" Mallalieu beckoned the superintendent aside and talked with him. Almost at once he himself turned away and left the room, and the superintendent came back to the group by the fireplace. "Well, there's no help for it, Harborough," he said. "We shall have to detain you--and I shall have to charge you, presently. It can't be helped--and I hope you'll be able to clear yourself."