And now, as he reviewed the things he had seen and felt and apprehended, Malone was content to keep unshared the secret of what could reduce a dauntless fighter to a quivering neurotic; what could make old brick slums and seas of dark, subtle faces a thing of nightmare and eldritch portent. It would not be the first time his sensations had been forced to bide uninterpreted--for was not his very act of plunging into the polyglot abyss of New York's underworld a freak beyond sensible explanation? What could he tell the prosaic of the antique witcheries and grotesque marvels discernible to sensitive eyes amidst the poison cauldron where all the varied dregs of unwholesome ages mix their venom and perpetuate their obscene terrors? He had seen the hellish green flame of secret wonder in this blatant, evasive welter of outward greed and inward blasphemy, and had smiled gently when all the New Yorkers he knew scoffed at his experiment in police work. They had been very witty and cynical, deriding his fantastic pursuit of unknowable mysteries and assuring him that in these days New York held nothing but cheapness and vulgarity. One of them had wagered him a heavy sum that he could not--despite many poignant things to his credit in the _Dublin Review_--even write a truly interesting story of New York low life; and now, looking back, he perceived that cosmic irony had justified the prophet's words while secretly confuting their flippant meaning. The horror, as glimpsed at last, could not make a story--for like the book cited by Poe's German authority, "er lässt sich nicht lesen"--it does not permit itself to be read. II To Malone the sense of latent mystery in existence was always present. In youth he had felt the hidden beauty and ecstasy of things, and had been a poet; but poverty and sorrow and exile had turned his gaze in darker directions, and he had thrilled at the imputations of evil in the world around. Daily life had for him come to be a fantasmagoria of macabre shadow-studies; now glittering and jeering with concealed rottenness as in Aubrey Beardsley's best manner, now hinting terrors behind the commonest shapes and objects as in the subtler and less obvious work of Gustave Doré. He would often regard it as merciful that most persons of high intelligence jeer at the inmost mysteries; for, he argued, if superior minds were ever placed in fullest contact with the secrets preserved by ancient and lowly cults, the resultant abnormalities would soon not only wreck the world, but threaten the very integrity of the universe. All this reflection was no doubt morbid, but keen logic and a deep sense of humor ably offset it. Malone was satisfied to let his notions remain as half-spied and forbidden visions to be lightly played with; and hysteria came only when duty flung him into a hell of revelation too sudden and insidious to escape.