"They all agreed that it was a huge creature, luminous, ghastly, and spectral. I have cross-examined these men, one of them a hard-headed countryman, one a farrier, and one a moorland farmer, who all tell the same story of this dreadful apparition, exactly corresponding to the hell-hound of the legend. I assure you that there is a reign of terror in the district, and that it is a hardy man who will cross the moor at night."
"Look at Sir Charles's death! That was bad enough, for all that the coroner said. Look at the noises on the moor at night. There's not a man would cross it after sundown if he was paid for it. Look at this stranger hiding out yonder, and watching and waiting! What's he waiting for? What does it mean? It means no good to anyone of the name of Baskerville . . . "
There was something awesome in the thought of the solitary mortal standing by the open window and summoning in from the gloom outside the spirits of the nether world.
It said: "I am the invisible nonentity. I have affinities and am subtle. I am electric, magnetic, and spiritualistic. I am the great ethereal sigh-heaver. I kill dogs. Mortal, wilt thou choose me?"
It was a very tall man, if, indeed, it might be called a man, for the gaunt bones were protruding through the corroding flesh, and the features were of a leaden hue. A winding-sheet was wrapped round the figure, and formed a hood over the head, from under the shadow of which two fiendish eyes, deep set in their grisly sockets, blazed and sparkled like red-hot coals.
A hound it was, an enormous coal-black hound, but not such a hound as mortal eyes have ever seen. Fire burst from its open mouth, its eyes glowed with a smouldering glare, its muzzle and hackles and dewlap were outlined in flickering flame. Never in the delirious dream of a disordered brain could anything more savage, more appalling, more hellish be conceived than that dark form and savage face which broke upon us out of the wall of fog.
To that Providence, my sons, I hereby commend you, and I counsel you by way of caution to forbear from crossing the moor in those dark hours when the powers of evil are exalted.
"You said I killed you - haunt me, then! The murdered do haunt their murderers, I believe. I know that ghosts have wandered on earth. Be with me always - take any form - drive me mad! only do not leave me in this abyss, where I cannot find you!"