now, In the grip of that mad, hypnotic song, in the instant before unbearable terror enfolded him, his eyes opened to full sight, and he saw.
That Tree was only Thag's outline, sketched three-dimensionally upon the twilight. Its dreadfully curving branches had been no more than Thag's barest contours, yet even they had made his very soul sick with intuitive revulsion. But now, seeing the true horror, his mind was too numb to do more than register its presence: Thag, hovering monstrously between earth and heaven, billowing and surging up there in the translucent twilight, tethered to the ground by the Tree's bending stem and reaching ravenously after the hypnotized fodder that his calling brought helpless into his clutches. One by one he snatched them up, one by one absorbed them into the great, unseeable horror of his being. That, then, was the reason why they vanished so instantaneously, sucked into the concealing folds of a thing too dreadful for normal eyes to see.
The priestess was pacing forward. Above her the branches arched and leaned. Caught in a timeless paralysis of horror, Smith stared upward into the enormous bulk of Thag while the music hummed intolerably in his shrinking brain—Thag, the monstrous thing from darkness, called up by Illar in those long-forgotten times when Mars was a green planet. Foolishly his brain wandered among the ramifications of what had happened so long ago that time itself had forgotten, refusing to recognize the fate that was upon himself. He knew a tingle of respect for the ages-dead wizard who had dared command a being like this to his services—this vast, blind, hovering thing, ravenous for human flesh, indistinguishable even now save in those terrible outlines that sent panic leaping through him with every motion of the Tree's fearful symmetry.
All this flashed through his dazed mind in the one blinding instant of understanding. Then the priestess' luminous whiteness swam up before his hypnotized stare. Her hands were upon him, gently guiding his mechanical footsteps, very gently leading him forward into—into——
The writhing branches struck downward, straight for his face. And in one flashing leap the moment's infinite horror galvanized him out of his paralysis. Why, he could not have said. It is not given to many men to know the ultimate essentials of all horror, concentrated into one fundamental unit. To most men it would have had that same paralyzing effect up to the very instant of destruction. But in Smith there must have been a bed-rock of subtle violence, an unyielding, inflexible vehemence upon which the structure of his whole life was reared. Few men have it. And when that ultimate intensity of terror struck the basic flint of him, reaching down through mind and soul into the deepest depths of his being, it struck a spark from that inflexible barbarian buried at the roots of him which had force enough to shock him out of his stupor.
In the instant of release his hand swept like an unloosed spring, of its own volition, straight for the butt of his power-gun. He was dragging it free as the Tree's branches snatched him from its priestess' hands. The fire-colored blossoms burnt his flesh as they closed round him, the hot branches gripping like the touch of ravenous fingers. The whole Tree was hot and throbbing with a dreadful travesty of fleshly life as it whipped him aloft into the hovering bulk of incarnate horror above.
