“Vouch for your sanity! How can I when you sit here and talk such arrant nonsense, and expect me to believe it? When you jump from your chair and rush madly at some visionary foe? Sane as you may be in all else, any evidence I could give in your favor must break down in cross-examination if an inkling of these things got about. Come, Carriston, be reasonable, and prove your sanity by setting about this search for Miss Rowan in a proper way.”

He made no reply, but walked up and down the room apparently in deep thought. My words seemed to have had no effect upon him. Presently he seated himself; and, as if to avoid returning to the argument, drew a book at hazard from my shelves and began to read. He opened the volume at random, but after reading a few lines seemed struck by something that met his eyes, and in a few minutes was deeply immersed in the contents of the book. I glanced at it to see what had so awakened his interest. By a curious fatality he had chosen a book the very worst for him in his present frame of mind—Gilchrist’s recently published life of William Blake, that masterly memoir of a man who was on certain points as mad as Carriston himself. I was about to remonstrate, when he laid down the volume and turned to me.

“Varley, the painter,” he said, “was a firm believer in Blake’s visions.”

“Varley was a bigger fool than Blake,” I retorted. “Fancy his sitting down and watching his clever but mad friend draw spectral heads, and believing them to be genuine portraits of dead kings whose forms condescended to appear to Blake!”

A sudden thought seemed to strike Carriston. “Will you give me some paper and chalk?” he asked. Upon being furnished with these materials he seated himself at the table and began to draw. At least a dozen times he sketched, with his usual rapidity, some object or another, and a dozen times, after a moment’s consideration, threw each sketch aside with an air of disappointment and began a fresh one. At last one of his attempts seemed to come up to his requirements. “I have it now, exactly!” he cried with joy—even triumph—in his voice. He spent some time in putting finishing touches to the successful sketch, then he handed me the paper.

“That is the man I saw just now with Madeline,” he said. “When I find him I shall find her.” He spoke with all sincerity and conviction. I looked at the paper with, I am bound to say, a great amount of curiosity.

No matter from what visionary source Carriston had drawn his inspiration, his sketch was vigorous and natural enough. I have already mentioned his wonderful power of drawing portraits from memory, so was willing to grant that he might have reproduced the outline of some face which had somewhere struck him. Yet why should it have been this one? His drawing represented the three quarter face of a man—an ordinary man—apparently between forty and fifty years of age. It was a coarse-featured, ill-favored face, with a ragged ruff of hair round the chin. It was not the face of a gentleman, nor even the face of a gentle-nurtured man; and the artist, by a few cunning strokes, had made it wear a crafty and sullen look. The sketch, as I write this, lies before me, so that I am not speaking from memory.

Now, there are some portraits of which, without having seen the original, we say, “What splendid likenesses these must be.” It was so with Carriston’s sketch. Looking at it you felt sure it was exactly like the man whom it was intended to represent. So that, with the certain amount of art knowledge which I am at least supposed to possess, it was hard for me, after examining the drawing and recognizing the true artist’s touch in every line, to bring myself to accept the fact that it was but the outcome of a diseased imagination. As, at this very moment, I glance at that drawing, I scarcely blame myself for the question that faintly frames itself in my innermost heart. “Could it be possible—could there be in certain organizations powers not yet known—not yet properly investigated?”

My thought, supposing such a thought was ever there—was not discouraged by Carriston, who, speaking as if his faith in the bodily existence of the man whose portrait lay in my hand was unassailable, said,