Once--the man above letting the rope slip a little too quickly around the body of the tree--he felt the speed at which he was descending increased, and, a moment later, that descent stopped by a sudden jerk. And he thought the rope had broken; that, in another second, he would be dashed to pieces on the stones below! No wonder, therefore, if from all the pores of his body the sweat oozed out, that his heart seemed to have stopped beating. Yet, another second, and the rope was running slowly again, and he understood what had happened and thanked God fervently. One of the turns had been made too loosely round the trunk of the tree. That was all! Yet, for the time being, bad enough!

A few more moments and again it stopped with another jerk, though from a different cause. It had come to its end.

And now he had to prepare for the plunge across to the unseen roof that he knew was there; would have, when he arrived on the other side, to feel with feet and hands--since his eyes were useless in this black darkness!--for something, either coping of roof, chimney, or gable to which to clutch, and, thereby, find foothold. "Oh!" he thought, "if I could but see, could but know how to direct my body." Yet, even as he so thought, he remembered that the darkness served him as equally as it rendered his task more difficult. If he could not see, neither could he be seen. No one could fire at him, as he had suggested might happen, or, firing, could hope to hit him.

He had not recognized before, though he did so now, how fair a boon the darkness and the reeking clouds of autumn fog were to him, by hiding from his vision the dreadful depth below. For, though he knew 'twas there, and that, between him and a swift flight down to death and destruction, there was naught to save him but the goodness of the rope's strength and quality--he did not see it! Therefore, he felt it less, could keep his head cool and his nerves calm in a manner that he doubted if he could have done on a bright sunny day, or even moonlight night.

Turning his face towards where the roof was, he prepared to take the plunge, his feet drawn up behind him and pressed against the wall, so as to get the full force of his propulsion, as a swimmer drives himself forward into a stream from the river's bank. Also--again like a swimmer--he threw his long arms in front of him so that he might either grasp aught which his hands should encounter or, with them, defend his face and head from being struck by wall or parapet. Then--for the moment had come!--he pushed with all the force of his feet against the rope and shot himself swiftly across the chasm. A minute later and he knew that he had failed!

His outstretched hands had struck something--he thought it was a horizontal water-pipe beneath the edge of the roof--but the strong fingers missed their grasp, the weight of his body in the rebound tore them away from whatever the object was which they had touched; a moment later and his form was swung back to the spot whence he had come, while the impetus given to the rope by the concussion of the rebound caused him to spin round and round like a teetotum till he was sick and giddy. Yet, with his hands against the damp, slimy wall, he managed to arrest the spinning at last; a moment or so later and he was hanging as before.

His breath was coming laboriously from his breast now, the swift return to the wall having nearly knocked him senseless--also the rope had tightened so about his body that it seemed as though it must cut through him. He lifted his hands above his head, therefore, and, seizing the rope, while he placed his right heel on a little unevenness it had encountered in the wall, eased himself somewhat by relieving the strain.

"Next time I must not fail," he thought. "If I do, I must desist and be drawn up." But as he set his teeth firmly, he muttered through them: "I will not fail. Now for it!"

With even more force than before he repeated what he had previously done, drew his feet a little higher behind him so that, as he thought--for quaint ideas come to our minds, even in the moment of most deadly danger!--he must present the appearance of some huge gargoyle, had there been any eye to see him, and then launched himself again across the chasm.

This time he did not fail.