And they, too, came in a tumbling heap about him, like flies upon a piece of food, but as they fell he was released for a moment from the power of their touch, and in that brief instant of freedom there flashed into his mind the sudden intuition that saved him.  Before he could regain his feet he saw them scrabbling awkwardly back upon the wall, as though bat-like they could only fly by dropping from a height, and had no hold upon him in the open.  Then, seeing them perched there in a row like cats upon a roof, all dark and singularly shapeless, their eyes like lamps, the sudden memory came back to him of Ilse’s terror at the sight of fire.

Quick as a flash he found his matches and lit the dead leaves that lay under the wall.

Dry and withered, they caught fire at once, and the wind carried the flame in a long line down the length of the wall, licking upwards as it ran; and with shrieks and wailings, the crowded row of forms upon the top melted away into the air on the other side, and were gone with a great rush and whirring of their bodies down into the heart of the haunted valley, leaving Vezin breathless and shaken in the middle of the deserted ground.

“Ilse!” he called feebly; “Ilse!” for his heart ached to think that she was really gone to the great Dance without him, and that he had lost the opportunity of its fearful joy.  Yet at the same time his relief was so great, and he was so dazed and troubled in mind with the whole thing, that he hardly knew what he was saying, and only cried aloud in the fierce storm of his emotion....

The fire under the wall ran its course, and the moonlight came out again, soft and clear, from its temporary eclipse.  With one last shuddering look at the ruined ramparts, and a feeling of horrid wonder for the haunted valley beyond, where the shapes still crowded and flew, he turned his face towards the town and slowly made his way in the direction of the hotel.

And as he went, a great wailing of cries, and a sound of howling, followed him from the gleaming forest below, growing fainter and fainter with the bursts of wind as he disappeared between the houses.

VI

“It may seem rather abrupt to you, this sudden tame ending,” said Arthur Vezin, glancing with flushed face and timid eyes at Dr. Silence sitting there with his notebook, “but the fact is—­er—­from that moment my memory seems to have failed rather.  I have no distinct recollection of how I got home or what precisely I did.

“It appears I never went back to the inn at all.  I only dimly recollect racing down a long white road in the moonlight, past woods and villages, still and deserted, and then the dawn came up, and I saw the towers of a biggish town and so came to a station.

“But, long before that, I remember pausing somewhere on the road and looking back to where the hill-town of my adventure stood up in the moonlight, and thinking how exactly like a great monstrous cat it lay there upon the plain, its huge front paws lying down the two main streets, and the twin and broken towers of the cathedral marking its torn ears against the sky.  That picture stays in my mind with the utmost vividness to this day.