C396 Uninvited guest(2)
In the Bidis City's space, the top was wide and the bottom was narrow. The farther down he went, the wall of the mountain was contracting to the middle, forming an inverted cone. After a few flashes, he was at the bottom of the city.
There was a square square square with 1 by 1 meter of square floor tiles. The floor tiles were etched with symbols at intervals