A murmur of astonishment followed this speech. It seemed hard to believe, but Harold spoke quietly, though in tones absolutely emphatic. "Perhaps I had better explain," he went on. "I told you that the Moth used to guard the inner temple at Ghan. It was the punishment of high political criminals that they should go into the inner temple and pluck from the trail a single blossom. They went in, but they never came out alive. When the gates were thrown back they lay dead with strange marks about their throats or their breast bones broken. It was a terrible and awesome punishment, and one that gave the priests immense power. Nobody knew how death came, nobody was meant to know, but we shall all in the room know in a few minutes. It was the work of the Moth." Again the murmur of astonishment arose. Harold signed to the policemen to open the window; As a dry air came in the long strands of the Manilla rope stretched as the moisture warmed out of it, a climber of the Moth dangled over the head of an inspector who pushed it aside, as if it had been poison. Harold produced something that looked like an oblong sack filled with firewood. He proceeded to tangle it in the loops and folds of the rope. "We will suppose that is a man," he said, "a man who has climbed up to the roof to steal the Moth which is all tangled up. He puts his arm through one loop and his head through another, thinking no evil, when suddenly the steam-hose is turned on. Now watch." Harold crossed the room and touched the steam-tap. As the moisture struck the very coarse Manilla rope it suddenly tightened with the moisture till it hummed again. The same effect was to be seen with a clothes-line after a shower of rain. But the almost diaphanous character of the rope and the heavy discharge of moisture brought the strands up so tight that they seemed to hum in the air. "There!" Harold cried, "there is the mystery—there is the secret of the priests. The man climbs until he is in a maze of loose rope; the steam is discharged and he is strangled—the life pressed out of him by those cruel cords; one cry and all is over. Listen." As the rope drew up the wood within the sack was heard to crack as if a vice had a grip on it. Gradually at the same time the whole mass lifted higher and higher. Presently as the air dried the loops again slackened and the sack came to the ground. Nobody said anything for a long time. But practically the proceedings were over; there was very little to say or do. The gentlemen of the pencil began to file out. After all, the extraordinary tragedy that had thrilled London as it had not been thrilled since the days of Jack the Ripper had resolved itself into a mere accident. One or two of the more fanciful element stayed, for they could see the making of a fine story here. After all, there was never a murder or a set of murders planned like this before.