In the end the three men from Arkham — old, white-bearded Dr Armitage, stocky, iron-grey Professor Rice, and lean, youngish Dr Morgan, ascended the mountain alone. After much patient instruction regarding its focusing and use, they left the telescope with the frightened group that remained in the road; and as they climbed they were watched closely by those among whom the glass was passed round. It was hard going, and Armitage had to be helped more than once. High above the toiling group the great swath trembled as its hellish maker repassed with snail-like deliberateness. Then it was obvious that the pursuers were gaining.

Curtis Whateley — of the undecayed branch — was holding the telescope when the Arkham party detoured radically from the swath. He told the crowd that the men were evidently trying to get to a subordinate peak which overlooked the swath at a point considerably ahead of where the shrubbery was now bending. This, indeed, proved to be true; and the party were seen to gain the minor elevation only a short time after the invisible blasphemy had passed it.

Then Wesley Corey, who had taken the glass, cried out that Armitage was adjusting the sprayer which Rice held, and that something must be about to happen. The crowd stirred uneasily, recalling that his sprayer was expected to give the unseen horror a moment of visibility. Two or three men shut their eyes, but Curtis Whateley snatched back the telescope and strained his vision to the utmost. He saw that Rice, from the party’s point of advantage above and behind the entity, had an excellent chance of spreading the potent powder with marvellous effect.

Those without the telescope saw only an instant’s flash of grey cloud — a cloud about the size of a moderately large building — near the top of the mountain. Curtis, who held the instrument, dropped it with a piercing shriek into the ankle-deep mud of the road. He reeled, and would have crumbled to the ground had not two or three others seized and steadied him. All he could do was moan half-inaudibly.

‘Oh, oh, great Gawd . . . that . . . that . . . ’

There was a pandemonium of questioning, and only Henry Wheeler thought to rescue the fallen telescope and wipe it clean of mud. Curtis was past all coherence, and even isolated replies were almost too much for him.

‘Bigger’n a barn . . . all made o’ squirmin’ ropes . . . hull thing sort o’ shaped like a hen’s egg bigger’n anything with dozens o’ legs like hogs-heads that haff shut up when they step . . . nothin’ solid abaout it — all like jelly, an’ made o’ sep’rit wrigglin’ ropes pushed clost together . . . great bulgin’ eyes all over it . . . ten or twenty maouths or trunks a-stickin’ aout all along the sides, big as stove-pipes an all a-tossin’ an openin’ an’ shuttin’ . . . all grey, with kinder blue or purple rings . . . an’ Gawd it Heaven — that haff face on top . . . ’

This final memory, whatever it was, proved too much for poor Curtis; and he collapsed completely before he could say more. Fred Farr and Will Hutchins carried him to the roadside and laid him on the damp grass. Henry Wheeler, trembling, turned the rescued telescope on the mountain to see what he might. Through the lenses were discernible three tiny figures, apparently running towards the summit as fast as the steep incline allowed. Only these — nothing more. Then everyone noticed a strangely unseasonable noise in the deep valley behind, and even in the underbrush of Sentinel Hill itself. It was the piping of unnumbered whippoorwills, and in their shrill chorus there seemed to lurk a note of tense and evil expectancy.

Earl Sawyer now took the telescope and reported the three figures as standing on the topmost ridge, virtually level with the altar-stone but at a considerable distance from it. One figure, he said, seemed to be raising its hands above its head at rhythmic intervals; and as Sawyer mentioned the circumstance the crowd seemed to hear a faint, half-musical sound from the distance, as if a loud chant were accompanying the gestures. The weird silhouette on that remote peak must have been a spectacle of infinite grotesqueness and impressiveness, but no observer was in a mood for aesthetic appreciation. ‘I guess he’s sayin’ the spell,’ whispered Wheeler as he snatched back the telescope. The whippoorwills were piping wildly, and in a singularly curious irregular rhythm quite unlike that of the visible ritual.

Suddenly the sunshine seemed to lessen without the intervention of any discernible cloud. It was a very peculiar phenomenon, and was plainly marked by all. A rumbling sound seemed brewing beneath the hills, mixed strangely with a concordant rumbling which clearly came from the sky. Lightning flashed aloft, and the wondering crowd looked in vain for the portents of storm. The chanting of the men from Arkham now became unmistakable, and Wheeler saw through the glass that they were all raising their arms in the rhythmic incantation. From some farmhouse far away came the frantic barking of dogs.

The change in the quality of the daylight increased, and the crowd gazed about the horizon in wonder. A purplish darkness, born of nothing more than a spectral deepening of the sky’s blue, pressed down upon the rumbling hills. Then the lightning flashed again, somewhat brighter than before, and the crowd fancied that it had showed a certain mistiness around the altar-stone on the distant height. No one, however, had been using the telescope at that instant. The whippoorwills continued their irregular pulsation, and the men of Dunwich braced themselves tensely against some imponderable menace with which the atmosphere seemed surcharged.

Without warning came those deep, cracked, raucous vocal sounds which will never leave the memory of the stricken group who heard them. Not from any human throat were they born, for the organs of man can yield no such acoustic perversions. Rather would one have said they came from the pit itself, had not their source been so unmistakably the altar-stone on the peak. It is almost erroneous to call them sounds at all, since so much of their ghastly, infra-bass timbre spoke to dim seats of consciousness and terror far subtler than the ear; yet one must do so, ............