Beholding now the shadow, Avyctes considered it closely and in silence; and there was neither fear nor awe nor abhorrence in the deep, graven wrinkles of his visage. And he said to me at last:
“This thing is a mystery beyond my lore; but never, in all the practice of my art, has any shadow come to me unbidden. And since all others of our evocations have found answer ere this, I must deem that the shadow is a veritable entity, or the sign of an entity, that has come in belated response to the formula of the serpent-sorcerers, which we thought powerless and void. And I think it well that we should now repair to the chamber of conjuration, and interrogate the shadow in such manner as we may, to inquire its nativity and purpose.”
We went forthwith into the chamber of conjuration, and made such preparations as were both necessary and possible. And when we were prepared to question it, the unknown shadow had drawn closer still to the shadow of Avyctes, so that the clear space between the two was no wider than the thickness of a necromancer’s rod.
Now, in all ways that were feasible, we interrogated the shadow, speaking through our own lips and the lips of mummies and statues. But there was no determinable answer; and calling certain of the devils and phantoms that were our familiars, we made question through the mouths of these, but without result. And all the while, our magic mirrors were void of any reflection of a presence that might have cast the shadow; and they that had been our spokesmen could detect nothing in the room. And there was no spell, it seemed, that had power upon the visitant. So Avyctes became troubled; and drawing on the floor with blood and ashes the ellipse of Oumor, wherein no demon nor spirit may intrude, he retired to its center. But still within the ellipse, like a flowing taint of liquid corruption, the shadow followed his shadow; and the space between the two was no wider than the thickness of a wizard’s pen.
Now, on the face of Avyctes, horror had graven new wrinkles; and his brow was beaded with a deathly sweat. For he knew, even as I, that this was a thing beyond all laws, and foreboding naught but disaster and evil. And he cried to me in a shaken voice, and said:
“I have no knowledge of this thing nor its intention toward me, and no power to stay its progress. Go forth and leave me now; for I would not that any man should witness the defeat of my sorcery and the doom that may follow thereupon. Also, it were well to depart while there is time, lest you too should become the quarry of the shadow and be compelled to share its menace.”
Though terror had fastened upon my inmost soul, I was loath to leave Avyctes. But I had sworn to obey his will at all times and in every respect; and moreover I knew myself doubly powerless against the adumbration, since Avyctes himself was impotent.
So, bidding him farewell, I went forth with trembling limbs from the haunted chamber; and peering back from the threshold, I saw that the alien umbrage, creeping like a noisome blotch on the floor, had touched the shadow of Avyctes. And at that moment the master shrieked aloud like one in nightmare; and his face was no longer the face of Avyctes but was contorted and convulsed like that of some helpless madman who wrestles with an unseen incubus. And I looked no more, but fled along the dim outer hall and through the high portals giving upon the terrace.
A red moon, ominous and gibbous, had declined above the terrace and the crags; and the shadows of the cedars were elongated in the moon; and they wavered in the gale like the blown cloaks of enchanters. And stooping against the gale, I fled across the terrace toward the outer stairs that led to a steep path in the riven waste of rocks and chasms behind Avyctes’ house. I neared the terrace edge, running with the speed of fear; but I could not reach the topmost outer stair; for at every step the marble flowed beneath me, fleeing like a pale horizon before the seeker. And though I raced and panted without pause, I could draw no nearer to the terrace edge.
At length I desisted, seeing that an unknown spell had altered the very space about the house of Avyctes, so that none could escape therefrom to landward. So, resigning myself in despair to whatever might befall, I returned toward the house. And climbing the white stairs in the low, level beams of the crag-caught moon, I saw a figure that awaited me in the portals. And I knew by the trailing robe of sea-purple, but by no other token, that the figure was Avyctes. For the face was no longer in its entirety the face of man, but was become a loathly fluid amalgam of human features with a thing not to be identified on earth. The transfiguration was ghastlier than death or the changes of decay; and the face was already hued with the nameless, corrupt and purulent color of the strange shadow, and had taken on, in respect to its outlines, a partial likeness to the squat profile of the shadow. The hands of the figure were not those of any terrene being; and the shape beneath the robe had lengthened with a nauseous undulant pliancy; and the face and fingers seemed to drip in the moonlight with a deliquescent corruption. And the pursuing umbrage, like a thickly flowing blight, had corroded and distorted the very shadow of Avyctes, which was now double in a manner not to be narrated here.
Fain would I have cried or spoken aloud; but horror had dried up the fount of speech. And the thing that had been Avyctes beckoned me in silence, uttering no word from its living and putrescent lips. And with eyes that were no longer eyes, but had become an oozing abomination, it peered steadily upon me. And it clutched my shoulder closely with the soft leprosy of its fingers, and led me half-swooning with revulsion along the hall, and into that room where the mummy of Oigos, who had assisted us in the threefold incantation of the serpent-men, was stationed with several of his fellows.
By the lamps which illumed the chamber, burning with pale, still, perpetual flames, I saw that the mummies stood erect along the wall in their exanimate repose, each in his wonted place with his tall shadow beside him. But the great, gaunt shadow of Oigos on the marble wall was companioned by an adumbration similar in all respects to the evil thing that had followed the master and was now incorporate with him. I remembered that Oigos had performed his share of the ritual, and had repeated an unknown stated word in turn after Avyctes; and so I knew that the horror had come to Oigos in turn, and would wreak itself upon the dead even as on the living. For the foul, anonymous thing that we had called in our presumption could manifest itself to mortal ken in no other way than this. We had drawn it from unfathomable depths of time and space, using ignorantly a dire formula; and the thing had come at its own chosen hour, to stamp itself in abomination uttermost on the evocators.
Since then, the night has ebbed away, and a second day has gone by like a sluggish ooze of horror…. I have seen the complete identification of the shadow with the flesh and the shadow of Avyctes… and also I have seen the slow encroachment of that other umbrage, mingling itself with the lank shadow and the sere, bituminous body of Oigos, and turning them to a similitude of the thing which Avyctes has become. And I have heard the mummy cry out like a living man in great pain and fear, as with the throes of a second dissolution, at the impingement of the shadow. And long since it has grown silent, like the other horror, and I know not its thoughts or its intent… . And verily I know not if the thing that has come to us be one or several; nor if its avatar will rest complete with the three that summoned it forth into time, or be extended to others.
But these things, and much else, I shall soon know; for now, in turn, there is a shadow that follows mine, drawing ever closer. The air congeals and curdles with an unseen fear; and they that were our familiars have fled from the mansion; and the great marble women seem to tremble where they stand along the walls. But the horror that was Avyctes, and the second horror that was Oigos, have left me not, and neither do they tremble. And with eyes that are not eyes, they seem to brood and watch, waiting till I too shall become as they. And their stillness is more terrible than if they had rended me limb from limb. And there are strange voices in the wind, and alien roarings upon the sea; and the walls quiver like a thin veil in the black breath of remote abysses.