“But it can be made only in trivial quantities, at enormous expense and with exceeding labour; it is so volatile that you cannot keep it for three days. I have sometimes thought that with a little ingenuity I might make it more stable, I might so modify it that, like radium, it lost no strength as it burned; and then I should possess the greatest secret that has ever been in the mind of man. For there would be no end of it. It would continue to burn while there was a drop of water on the earth, and the whole world would be consumed. But it would be a frightful thing to have in one’s hands; for once it were cast upon the waters, the doom of all that existed would be sealed beyond repeal.”

He took a long breath, and his eyes glittered with a devilish ardour. His voice was hoarse with overwhelming emotion.

“Sometimes I am haunted by the wild desire to have seen the great and final scene when the irrevocable flames poured down the river, hurrying along the streams of the earth, searching out the moisture in all growing things, tearing it even from the eternal rocks; when the flames poured down like the rushing of the wind, and all that lived fled from before them till they came to the sea; and the sea itself was consumed in vehement fire.”

Margaret shuddered, but she did not think the man was mad. She had ceased to judge him. He took one more particle of that atrocious powder and put it in the bowl. Again he thrust his hand in his pocket and brought out a handful of some crumbling substance that might have been dried leaves, leaves of different sorts, broken and powdery. There was a trace of moisture in them still, for a low flame sprang up immediately at the bottom of the dish, and a thick vapour filled the room. It had a singular and pungent odour that Margaret did not know. It was difficult to breathe, and she coughed. She wanted to beg Oliver to stop, but could not. He took the bowl in his hands and brought it to her.

“Look,” he commanded.

She bent forward, and at the bottom saw a blue fire, of a peculiar solidity, as though it consisted of molten metal. It was not still, but writhed strangely, like serpents of fire tortured by their own unearthly ardour.

“Breathe very deeply.”

She did as he told her. A sudden trembling came over her, and darkness fell across her eyes. She tried to cry out, but could utter no sound. Her brain reeled. It seemed to her that Haddo bade her cover her face. She gasped for breath, and it was as if the earth spun under her feet. She appeared to travel at an immeasurable speed. She made a slight movement, and Haddo told her not to look round. An immense terror seized her. She did not know whither she was borne, and still they went quickly, quickly; and the hurricane itself would have lagged behind them. At last their motion ceased; and Oliver was holding her arm.

“Don’t be afraid,” he said. “Open your eyes and stand up.”

The night had fallen; but it was not the comfortable night that soothes the troubled minds of mortal men; it was a night that agitated the soul mysteriously so that each nerve in the body tingled. There was a lurid darkness which displayed and yet distorted the objects that surrounded them. No moon shone in the sky, but small stars appeared to dance on the heather, vague night-fires like spirits of the damned. They stood in a vast and troubled waste, with huge stony boulders and leafless trees, rugged and gnarled like tortured souls in pain. It was as if there had been a devastating storm, and the country reposed after the flood of rain and the tempestuous wind and the lightning. All things about them appeared dumbly to suffer, like a man racked by torments who has not the strength even to realize that his agony has ceased. Margaret heard the flight of monstrous birds, and they seemed to whisper strange things on their passage. Oliver took her hand. He led her steadily to a cross-road, and she did not know if they walked amid rocks or tombs.