“It is working! It is working!” cried the Frenchman, and there was a crack in his voice as he spoke which told me that he also was strung to his tightest.

The luminous fog drifted slowly off the table, and wavered and flickered across the room. There in the farther and darkest corner it gathered and glowed, hardening down into a shining core—a strange, shifty, luminous, and yet non-illuminating patch of radiance, bright itself, but throwing no rays into the darkness. It had changed from a greenish-yellow to a dusky sullen red. Then round this centre there coiled a dark, smoky substance, thickening, hardening, growing denser and blacker. And then the light went out, smothered in that which had grown round it.

“It has gone.”

“Hush—there’s something in the room.”

We heard it in the corner where the light had been, something which breathed deeply and fidgeted in the darkness.

“What is it? Le Duc, what have you done?”

“It is all right. No harm will come.” The Frenchman’s voice was treble with agitation.

“Good heavens, Moir, there’s a large animal in the room. Here it is, close by my chair! Go away! Go away!”

It was Harvey Deacon’s voice, and then came the sound of a blow upon some hard object. And then ... And then ... how can I tell you what happened then?

Some huge thing hurtled against us in the darkness, rearing, stamping, smashing, springing, snorting. The table was splintered. We were scattered in every direction. It clattered and scrambled amongst us, rushing with horrible energy from one corner of the room to another. We were all screaming with fear, grovelling upon our hands and knees to get away from it. Something trod upon my left hand, and I felt the bones splinter under the weight.