"But what happened after the picture was finished? George would never permit himself to be quietly and contemptuously dismissed from the studio without making the affair public, or seeking redress. Nor would Angelo be such a fool as to permit George to go forth to the world, proclaiming the ignominious treatment he had received. Ah, I have it! That drug must have so disordered his senses as to leave him without intellect and without memory of the past. Angelo would have no difficulty in removing him in that state to Rivoli, and detaining him there—a harmless lunatic—in his old nurse's cottage. What cared he so long as his rival in love was out of the way, and his fame as an artist established? Yes, yes; I see it all now.

"'In some secluded part of Europe I shall live out my days a lonely recluse.' That letter was a forgery of Angelo's. The damnable villain! I now understand his words to Daphne when parting from her at Rivoli: 'You are nearer to him now than you have been for months.' Of course she was. George was living, a sort of prisoner, at Rivoli. He must have contrived to escape from his place of captivity that very day; and, perhaps with some faint glimmering of reason left, he determined to have vengeance on all who had taken part in the plot against him. That is why he hurled the old man over the cliff. He was mad, quite mad, there can be no doubt, and that is why he took no notice of Daphne when he saw her by the haunted spring."

As I thought of the old man's awful death I muttered, "It will not be well for Angelo if George should find him out."

Scarcely had this idea occurred to me when I recalled the butler's stories of the wild face he had seen staring through the casement in the dusk of evening, a face like that in the picture; of the figure in the grey cloak, and of the terrible cry of the previous night—a "death-cry" the butler had called it.

Now the butler knew absolutely nothing of my brother's history; how came he, then, to connect this picture with a figure in a grey cloak, unless, indeed, he had seen such a figure lying on the floor of the gallery?

Could it be that George, having secretly gained access to the Abbey with intent to kill the artist, had been himself killed by the very man whose life he sought—struck down in the dead of night in front of the picture that had been the cause of all the mystery?

Was it possible that only a few hours ago this gallery had rung with my brother's death-cry as Angelo struck him down? Oppressed by this new idea I turned quite faint, becoming alternately cold and hot.

"If so, what can Angelo have done with the body?" I thought. "Is it in the tower?" From the casement where I sat a view could be obtained of the Nuns' Tower. I turned, and to my surprise beheld a light shining from the window of the artist's studio.

Too impatient to await the return of the Baronet with the constable and the warrant, I determined to make my way to the tower, and force from the artist an explanation of the mystery that overhung George's fate.

With a final glance at the painted image of my brother's face, whose mournful eyes and mute lips seemed appealing to me for justice, I left the gallery, and hurrying over the lawn reached the tower, bareheaded, breathless, and excited.