This data, received with suspense and astonishment by the assembled members, proved doubly exciting to Inspector Legrasse; and he began at once to ply his informant with questions. Having noted and copied an oral ritual among the swamp cult-worshippers his men had arrested, he besought the professor to remember as best he might the syllables taken down amongst the diabolist Esquimos. There then followed an exhaustive comparison of details, and a moment of really awed silence when both detective and scientist agreed on the virtual identity of the phrase common to two hellish rituals so many worlds of distance apart. What, in substance, both the Esquimo wizards and the Louisiana swamp-priests had chanted to their kindred idols was something very like this – the word-divisions being guessed at from traditional breaks in the phrase as chanted aloud:

Ph’nglui mglw’nafh Cthulhu R’lyeh wgah’nagl fhtagn.

Legrasse had one point in advance of Professor Webb, for several among his mongrel prisoners had repeated to him what older celebrants had told them the words meant. This text, as given, ran something like this:

In his house at R’lyeh dead Cthulhu waits dreaming.

And now, in response to a general and urgent demand, Inspector Legrasse related as fully as possible his experience with the swamp worshippers; telling a story to which I could see my uncle attached profound significance. It savoured of the wildest dreams of myth-maker and theosophist, and disclosed an astonishing degree of cosmic imagination among such half-castes and pariahs as might be least expected to possess it.

On November 1st, 1907, there had come to the New Orleans police a frantic summons from the swamp and lagoon country to the south. The squatters there, mostly primitive but good-natured descendants of Lafitte’s men, were in the grip of stark terror from an unknown thing, which had stolen upon them in the night. It was voodoo, apparently, but voodoo of a more terrible sort than they had ever known; and some of their women and children had disappeared since the malevolent tomtom had begun its incessant beating far within the black haunted woods where no dweller ventured. There were insane shouts and harrowing screams, soul-chilling chants and dancing devil-flames; and, the frightened messenger added, the people could stand it no more.

So a body of twenty police, filling two carriages and an automobile, had set out in the late afternoon with the shivering squatter as a guide. At the end of the passable road they alighted, and for miles splashed on in silence through the terrible cypress woods where day never came. Ugly roots and malignant hanging nooses of Spanish moss beset them, and now and then a pile of dank stones or fragment of a rotting wall intensified by its hint of morbid habitation a depression which every malformed tree and every fungous islet combined to create. At length the squatter settlement, a miserable huddle of huts, hove in sight; and hysterical dwellers ran out to cluster around the group of bobbing lanterns. The muffled beat of tomtoms was now faintly audible far, far ahead; and a curdling shriek came at infrequent intervals when the wind shifted. A reddish glare, too, seemed to filter through pale undergrowth beyond the endless avenues of forest night. Reluctant even to be left alone again, each one of the cowed squatters refused point blank to advance another inch toward the scene of unholy worship, so Inspector Legrasse and his nineteen colleagues plunged on unguided into black arcades of horror that none of them had ever trod before.