The bronze doors swing open to reveal a huge hall, some forty by ninety feet, with a ceiling arching up some thirty feet overhead. The many butresses and arches for a tracery of shadows above your heads. The floor and walls are covered in slabs of polished stone, apparently azurite and malachite from the swirls of blue intermingled with deep green. Some magic has evidently been placed here, for a soft and cloudy luminosity of greenish hue seeps from the walls and floor. It floats lazily in the air, giving the impression that the whole chamber is deep underwater. This impression is enhanced by the bronze doors, fountain and other works; all are covered with verdigris. Even the damp air carries the scent and taste of the sea.
In the center of the western wall is a great sheet of bronze, a bas relief of an underwater vista; it depicts seaweed, shells and various forms of marine life. The head of a grotesque fish-like thing projects from the center, a most hideous visage. Its ghastly maw emits a stream of water, which falls into a tiered series of four basins. The fourth and largest never seems to overflow.
In the center of the hall is a bronze "altar" with many marine creatures sculpted upon it in bas relief. It is about four feet hight and ten feet in diameter. Its top is concave, its basin filled with water. The bottom of the basin is filled with a mix of small seashells, gleaming coins and sparkling gemstones.
Across from you is a wide alcove, in which stands a grotesque statue of bronze, expertly sculpted to depict a writhing, amorphous agglomeration of fish, eels, octopi and other marine monsters. The idol stands nearly nine feet tall, and nearly as broad, forming a bulky globular mass supported by thick tentacles. The alcove behind it is some ten feet deep, its back wall covered with a shifting drapery that appears to be fashioned from seaweed and water!
In each corner of the hall is a triangular plynth extending about twenty feet upwards. Atop each of these columns is a gargoyle-like statue crafted of bronze, and covered with verdigris.
A feeling of deep and pervasive evil creeps over each of you as you take in the wonders of the chamber.