The darkness of the gate lasted half a second, then they were somewhere else entirely.
Lukas blinked, letting his eyes adjust.
They were standing on a street, which had stone paving beneath their boots, and buildings rising on either side.
The familiar geometry of a city block stretched out ahead of them in both directions. But nothing else about it was familiar.
The buildings climbed from the street level upwards without stopping, their walls rising until they met the roof of the cavern that housed the entire city.
There was no sky. The ceiling above them was raw stone, looking irregular to the eyes with jagged spikes pointing downwards, and the buildings simply grew into it the way trees grow into a canopy.
Everything in the Undercity was connected, and everything was enclosed.
The street was lit by lamps mounted at even intervals, their light filling the space with an amber glow that reached further than it should have.
