convulsively agitated once or twice, and its sword, tossed out of the upturned scabbard, struck the corner of the cornice with a sharp clang, bounded up, flashing in the red glare, and shot down a long line of light to the pavement. Its owner's corpse writhed sinuously and then merely gyrated limply at the end of the rope. Its feet were not much more than a man's height above the cornice. My abomination of the sight unnerved me so that my impulse to hurl myself upon the murderer was swallowed up in a physical sickness in which I nearly fell from the sill. As I clung to the stone jamb the malignant white shape, dagger in hand, addressed me:
"Sir, I know who you are. I was about to piece my rope with your carcass. Since this intruding stranger has spared me the necessity, and since the rope is now long enough to be useful, I offer you the courtesy of the first opportunity to descend."
Speechless with horror and loathing I tottered, a helpless jelly, against the jamb. He stood, his long dagger in his right hand, eyeing me through his whitened mask.
"Ah," he went on. "You hesitate. You can pass me easily, descend by the bracket, the rope the cornice, and the rain-spout. You will not? Then you will pardon me if I leave you. You will find it warm here before long. Nevertheless,
