Leaving the crystal spider undisturbed, we retraced our steps quietly, not wanting to provoke her. When we reached the exit of the mine, we were greeted by a breathtaking sight. We were indeed in the lost city, or at least a city buried by a mountain. But contrary to our expectations, Kyrthar Tahlketh was no ordinary underground city built by dwarves or inhabited by dark elves.
Instead, we found a city surrounded by a massive stone dome. Huge stone walls took the place of the sky, sealing the city off from the outside world. We found ourselves in a colossal cavern, created entirely by magic, that encompassed an entire metropolis. The distance to the opposite wall was so great that clouds formed, creating a microclimate within.
The reason we could see the city at all was because of a huge icosahedron that glowed in the centre of the city, suspended beneath the stone dome. It bathed the whole city in a red glow, and its rays warmed us even at the edge of the city. We had truly found the lost city, and it was even more wondrous than we could have ever imagined.