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Curiosity overcomes your natural caution and you decide to investigate the fascinating structure. You discover that the undergrowth has only recently been chopped away to give access to the doors where gaping, fire-blackened holes are all that remain of the crystal locks that held them secure for centuries. Beyond the damaged doors a dry, dark tunnel slopes gently downwards. It twists as it descends to a chamber, which is huge and empty, and ringed by a score of openings. A green glow and the faint thrumming of discordant chanting draws you to one of these many portals. Beyond it a staircase delves deeper into the earth.
As you make your way carefully downward, the air becomes increasingly humid and chill. The stairs are slick with moisture and crawling with spiders and other many-legged creatures that scuttle away from your feet. You count sixty steps before the staircase ends at a huge door stained black with damp and age. It is slightly ajar and, as you peer through the crack, you are chilled to the core by what lies beyond.