man hearing in their pitch. With the addition of the final gong, even less sound will be audible."
While I was trying to digest this difficult idea, I noticed a partial dimming of the light above the tripod and its weird apparatus. A vertical shaft of faint shadow, surrounded by a still fainter penumbra, was forming in the air. The tripod itself, and the wires, gongs and hammers, were now a trifle indistinct, as if seen through some obscuring veil. The central shaft and its penumbra seemed to widen; and looking down at the floor, where the outer adumbration, coforming to the room's outline, crept toward the walls, I saw that Averaud and myself were now within its ghostly triangle.
At the same time there surged upon me an intolerable depression, together with a multitude of sensations which I despair of conveying in language. My very sense of space was distorted and deformed, as if some unknown dimension had somehow been mingled with those familiar to us. There was a feeling of dreadful and measureless descent, as if the floor were sinking beneath me into some nether pit; and I seemed to pass beyond the room in a torrent of swirling, hallucinative images, visible but invisible, felt but intangible, and more awful, more accurst than that hurricane of lost-souls beheld by Dante.
Down, down, I appeared to go, in the bottomless and phantom hell that was impinging upon reality. Death, decay, malignity, madness, gathered in the air and pressed me down like Satanic incubi in that ecstatic horror of descent. I felt that there were a thousand forms, a thousand faces about me, summoned from the gulfs of perdition. And yet I saw nothing but the white face of Averaud, stamped with a frozen and abominable rapture as he fell beside me.
Like a dreamer who forces himself to awaken, he began to move away from me. I seemed to lose sight of him for a moment in the cloud of nameless, immaterial horrors that threatened to take on the further horror of substance. Then I realized that Averaud had turned off the switch, and that the oscillating hammers had ceased to beat on those infernal gongs. The double shaft of shadow faded in mid-air, the burden of terror and despair lifted from my nerves, and I no longer felt the damnable hallucination of nether space and descent.
"My God!" I cried. "What was it?"
Averaud's look was full of a ghastly, gloating exultation as he turned to me.
"You saw and felt it, then?" he queried—"that vague, imperfect manifestation of the perfect evil which exists somewhere in the cosmos? I shall yet call it forth in its entirety, and know the black, infinite, reverse raptures which attend its epiphany."
I recoiled from him with an involuntary shudder. All the hideous things that had swarmed upon me beneath the cacophonous beating of those accurst gongs, drew near again for an instant; and I looked with fearful vertigo into hells of perversity and corruption. I saw an inverted soul, despairing of good, which longed for the baleful ecstasies of perdition. No longer did I think him merely mad: for I knew the thing which he sought and could attain; and I remembered, with a
