Mr. Clarke, the gentleman chosen by Dr. Raymond to witness the strange experiment of the god Pan, was a person in whose character caution and curiosity were oddly mingled; in his sober moments he thought of the unusual and eccentric with undisguised aversion, and yet, deep in his heart, there was a wide-eyed inquisitiveness with respect to all the more recondite and esoteric elements in the nature of men. The latter tendency had prevailed when he accepted Raymond’s invitation, for though his considered judgment had always repudiated the doctor’s theories as the wildest nonsense, yet he secretly hugged a belief in fantasy, and would have rejoiced to see that belief confirmed. The horrors that he witnessed in the dreary laboratory were to a certain extent salutary; he was conscious of being involved in an affair not altogether reputable, and for many years afterwards he clung bravely to the commonplace, and rejected all occasions of occult investigation. Indeed, on some homeopathic principle, he for some time attended the seances of distinguished mediums, hoping that the clumsy tricks of these gentlemen would make him altogether disgusted with mysticism of every kind, but the remedy, though caustic, was not efficacious. Clarke knew that he still pined for the unseen, and little by little, the old passion began to reassert itself, as the face of Mary, shuddering and convulsed with an unknown terror, faded slowly from his memory. Occupied all day in pursuits both serious and lucrative, the temptation to relax in the evening was too great, especially in the winter months, when the fire cast a warm glow over his snug bachelor apartment, and a bottle of some choice claret stood ready by his elbow. His dinner digested, he would make a brief pretence of reading the evening paper, but the mere catalogue of news soon palled upon him, and Clarke would find himself casting glances of warm desire in the direction of an old Japanese bureau, which stood at a pleasant distance from the hearth. Like a boy before a jam-closet, for a few minutes he would hover indecisive, but lust always prevailed, and Clarke ended by drawing up his chair, lighting a candle, and sitting down before the bureau. Its pigeon-holes and drawers teemed with documents on the most morbid subjects, and in the well reposed a large manuscript volume, in which he had painfully entered the gems of his collection. Clarke had a fine contempt for published literature; the most ghostly story ceased to interest him if it happened to be printed; his sole pleasure was in the reading, compiling, and rearranging what he called his “Memoirs to prove the Existence of the Devil,” and engaged in this pursuit the evening seemed to fly and the night appeared too short.