Through the Gates of the Silver Key by H.P. Lovecraft

In a vast room hung with strangely figured arras and carpeted with Boukhara rugs of impressive age and workmanship, four men were sitting around a document-strown table. From the far corners, where odd tripods of wrought iron were now and then replenished by an incredibly aged negro in somber livery, came the hypnotic fumes of olibanum; while in a deep niche on one side there ticked a curious, coffin-shaped clock whose dial bore baffling hieroglyphs and whose four hands did not move in consonance with any time system known on this planet. It was a singular and disturbing room, but well fitted to the business then at hand. For there, in the New Orleans home of this continent's greatest mystic, mathematician and orientalist, there was being settled at last the estate of a scarcely less great mystic, scholar, author and dreamer who had vanished from the face of the earth four years before.

Randolph Carter, who had all his life sought to escape from the tedium and limitations of waking reality in the beckoning vistas of dreams and fabled avenues of other dimensions, disappeared from the sight of man on the seventh of October, 1928, at the age of fifty-four. His career had been a strange and lonely one, and there were those who inferred from his curious novels many episodes more bizarre than any in his recorded history. His association with Harley Warren, the South Carolina mystic whose studies in the primal Naacal language of the Himalayan priests had led to such outrageous conclusions, had been close. Indeed, it was he who -- one mist-mad, terrible night in an ancient graveyard -- had seen Warren descend into a dank and nitrous vault, never to emerge. Carter lived in Boston, but it was from the wild, haunted hills behind hoary and witch-accursed Arkham that all his forebears had come.