"That is a known, though rarely obtained, effect of Cannabis indica," observed the doctor. "And it provoked laughter again, did it?"
"Only the muttering of the cupboard-bookcase made me laugh. It was so like a great animal trying to get itself noticed, and made me think of a performing bear—which is full of a kind of pathetic humour, you know. But this mingling of the senses produced no confusion in my brain. On the contrary, I was unusually clear-headed and experienced an intensification of consciousness, and felt marvellously alive and keen-minded.
"Moreover, when I took up a pencil in obedience to an impulse to sketch—a talent not normally mine—I found that I could draw nothing but heads, nothing, in fact, but one head—always the same—the head of a dark-skinned woman, with huge and terrible features and a very drooping left eye; and so well drawn, too, that I was amazed, as you may imagine—"
"And the expression of the face—?"
Pender hesitated a moment for words, casting about with his hands in the air and hunching his shoulders. A perceptible shudder ran over him.
"What I can only describe as—blackness," he replied in a low tone; "the face of a dark and evil soul."
"You destroyed that, too?" queried the doctor sharply.
"No; I have kept the drawings," he said, with a laugh, and rose to get them from a drawer in the writing-desk behind him.
"Here is all that remains of the pictures, you see," he added, pushing a number of loose sheets under the doctor's eyes; "nothing but a few scrawly lines. That's all I found the next morning. I had really drawn no heads at all—nothing but those lines and blots and wriggles. The pictures were entirely subjective, and existed only in my mind which constructed them out of a few wild strokes of the pen. Like the altered scale of space and time it was a complete delusion. These all passed, of course, with the passing of the drug's effects. But the other thing did not pass. I mean, the presence of that Dark Soul remained with me. It is here still. It is real. I don't know how I can escape from it."
"It is attached to the house, not to you personally. You must leave the house."
"Yes. Only I cannot afford to leave the house, for my work is my sole means of support, and—well, you see, since this change I cannot even write. They are horrible, these mirthless tales I now write, with their mockery of laughter, their diabolical suggestion. Horrible? I shall go mad if this continues."
He screwed his face up and looked about the room as though he expected to see some haunting shape.
"This influence in this house induced by my experiment, has killed in a flash, in a sudden stroke, the sources of my humour, and though I still go on writing funny tales—I have a certain name you know—my inspiration has dried up, and much of what I write I have to burn—yes, doctor, to burn, before any one sees it."
"As utterly alien to your own mind and personality?"
"Utterly! As though some one else had written it—"
"Ah!"
"And shocking!" He passed his hand over his eyes a moment and let the breath escape softly through his teeth. "Yet most damnably clever in the consummate way the vile suggestions are insinuated under cover of a kind of high drollery. My stenographer left me of course—and I've been afraid to take another—"
John Silence got up and began to walk about the room leisurely without speaking; he appeared to be examining the pictures on the wall and reading the names of the books lying about. Presently he paused on the hearthrug, with his back to the fire, and turned to look his patient quietly in the eyes. Pender's face was grey and drawn; the hunted expression dominated it; the long recital had told upon him.
"Thank you, Mr. Pender," he said, a curious glow showing about his fine, quiet face; "thank you for the sincerity and frankness of your account. But I think now there is nothing further I need ask you." He indulged in a long scrutiny of the author's haggard features drawing purposely the man's eyes to his own and then meeting them with a look of power and confidence calculated to inspire even the feeblest soul with courage. "And, to begin with," he added, smiling pleasantly, "let me assure you without delay that you need have no alarm, for you are no more insane or deluded than I myself am—"
Pender heaved a deep sigh and tried to return the smile.
"—and this is simply a case, so far as I can judge at present, of a very singular psychical invasion, and a very sinister one, too, if you perhaps understand what I mean—"
"It's an odd expression; you used it before, you know," said the author wearily, yet eagerly listening to every word of the diagnosis, and deeply touched by the intelligent sympathy which did not at once indicate the lunatic asylum.
"Possibly," returned the other, "and an odd affliction, too, you'll allow, yet one not unknown to the nations of antiquity, nor to those moderns, perhaps, who recognise the freedom of action under certain pathogenic conditions between this world and another."
"And you think," asked Pender hastily, "that it is all primarily due to the Cannabis? There is nothing radically amiss with myself—nothing incurable, or—?"
"Due entirely to the overdose," Dr. Silence replied emphatically, "to the drug's direct action upon your psychical being. It rendered you ultra-sensitive and made you respond to an increased rate of vibration. And, let me tell you, Mr. Pender, that your experiment might have had results far more dire. It has brought you into touch with a somewhat singular class of Invisible, but of one, I think, chiefly human in character. You might, however, just as easily have been drawn out of human range altogether, and the results of such a contingency would have been exceedingly terrible. Indeed, you would not now be here to tell the tale. I need not alarm you on that score, but mention it as a warning you will not misunderstand or underrate after what you have been through.
"You look puzzled. You do not quite gather what I am driving at; and it is not to be expected that you should, for you, I suppose, are the nominal Christian with the nominal Christian's lofty standard of ethics, and his utter ignorance of spiritual possibilities. Beyond a somewhat childish understanding of 'spiritual wickedness in high places,' you probably have no conception of what is possible once you break-down the slender gulf that is mercifully fixed between you and that Outer World. But my studies and training have taken me far outside these orthodox trips, and I have made experiments that I could scarcely speak to you about in language that would be intelligible to you."
He paused a moment to note the breathless interest of Pender's face and manner. Every word he uttered was calculated; he knew exactly the value and effect of the emotions he desired to waken in the heart of the afflicted being before him.
"And from certain knowledge I have gained through various experiences," he continued calmly, "I can diagnose your case as I said before to be one of psychical invasion."
"And the nature of this—er—invasion?" stammered the bewildered writer of humorous tales.