The finely-worked block tunnel ended with another archway, similar in style and details to the one that led into the mountain, under the tree roots. The major distinction was the lightly-glowing blocks, each emitting a dim greenish glow, barely visible alongside the torchlight. All the blocks in the arch were intact, save one, on the upper right side – it was cracked, dim as the stone of which it was made, and was partially displaced, likely by a shift in the mountain itself.
The chamber on the other side of the arch was similar to the one where the spiders had taken up residence, albeit larger, and with more ornate and prominent designs painted onto and carved into the walls, ceiling, and floor, the center of which itself was partially sunken, a step or two below hall-level, and accessed by two steps down, set into the ground just inside the room from the tunnel.
The entire circular room was about 50’ in diameter, with the domed roof about 15’ high at its apex and center. In the center 10’ of the room was a hole, with what looked like gold inlay around its lip, and on the floor spread across the entire room appeared to be a stylized map of mountains, lakes, and a coastline. On the ceiling there appeared to be constellations, stars, and other forms. There were no other doors, passageways, or means of access or egress – not that were evident – aside from the entry arch from the tunnel, and the hole in the floor.
Aside from a 6" lip around the hole, there was no furniture, nor other trappings, in the room – nothing, but a slightly warm movement of air from inside, smelling faintly of spice.