It was only the General who spoke, and he was not conscious of doing so. "By Gad! you're right, Doctor," he muttered. "He's thoroughbred right enough—he's thoroughbred."

And the Great Doctor, whose iron nerve had earned for him the reputation of being one of the two finest operating surgeons in Europe, wiped the sweat from his forehead with a hand that shook like a leaf.

Then began the descent.

"Look at the brickwork the whole time, Seymour—and hold fast with your hands. Now give me your right foot: give me your right foot, do you hear? That's it—now the left."

Step by step, with Peter just below him, the aviator came down the chimney, and he was still thirty feet from the bottom when the onlookers saw him pause and pass a hand over his forehead. He gazed down at them, and on his face there was a look of dazed surprise—like a man waking from a dream. Then he swung himself rapidly down to the ground, where he stood facing Peter.

"You've saved my life, old man," he said, a little breathlessly, with the wondering look still in his eyes. "I—don't understand quite what happened. I seemed to go all queer—when I looked down." He laughed shakily. "Dashed funny thing—er—thanks, most awfully. Good Lord! What's the matter, old boy?"

He leant over Peter, who had pitched forward unconscious at his feet.

"I think," remarked the Well-known Soldier to no one in particular, as they walked back, "that the less said about this little episode the better. It was a good deal too near a tragedy for my liking."

"A most instructive case," murmured the Great Doctor, "showing, first of all, the wonderful power of self-hypnotism. I have heard of similar cases in those old-fashioned London houses, where the light in the hall has fascinated people leaning over the banisters two or three stories above it, and caused them to want to throw themselves over."

"And what is your second observation?" murmured the Rising Barrister, who was always ready to learn.