These were her thoughts as she and her guide stopped at a strong door. This was presently opened and they found themselves in an underground chamber, devoted to the mysteries of the worship of Serapis, in which the adepts were required to go through certain severe ordeals before they were esteemed worthy to be received into the highest order of the initiated--the Esoterics. The halls and corridors which she now went through, and which she had never before seen, were meagrely lighted with lamps and torches, and all that met her eye filled her with reverent awe while it excited her imagination. Everything, in fact--every room and every image--was as unlike nature, and as far removed from ordinary types as possible, in arrangement and appearance. After passing through a pyramidal room, with triangular sides that sloped to a point, she came to one in the shape of a polygonal prism. In a long, broad corridor she had to walk on a narrow path, bordered by sphinxes; and there she clung tightly to her guide, for on one side of the foot-way yawned a gulf of great depth. In another place she heard, above her head, the sound of rushing waters, which then fell into the abyss beneath with a loud roar. After this she came upon a large grotto, hewn in the living rock and defended by a row of staring crocodiles' heads, plated with gold; the heavy smell of stale incense and acrid resins choked her, and her way now lay over iron gratings and past strangely contrived furnaces. The walls were decorated with colored reliefs: Tantalus, Ixion, and Sisyphus toiling at his stone, looked down on her in hideous realism as she went. Rock chambers, fast closed with iron doors, as though they enclosed inestimable treasures or inscrutable secrets, lay on either hand, and her dress swept against numerous images and vessels closely shrouded in hangings. When she ventured to look round, her eye fell on monstrous forms and mystical signs and figures; if she glanced upwards, she saw human and animal forms, and mixed with these the various constellations, sailing in boats--the Egyptian notion of their motions--along the back of a woman stretched out to an enormous length; or, again, figures by some Greek artist: the Pleiades, Castor and Pollux as horsemen with stars on their heads, and Berenice's star-gemmed hair. The effect on the girl was bewildering, overpowering, as she made her way through this underground world. The things she had glimpses of were very sparely illuminated, nay scarcely discernible, and yet appallingly real; what mysteries, what spells might not he hidden in all she did not see! She felt as if the end of life, which she was looking for, had already begun, as if she had already gone down, alive, into Hades. The path gradually sloped upwards and at last she ascended, by a spiral staircase, to the ground-floor of the temple. Once or twice she had met a few men, but solemn silence reigned in those subterranean chambers.