In the Shadows of Corruption

There was a reason his father and the guild built up when Mecane expanded over Mattheus Crown's lifespan. The reason why trams, monorails, and airships were the norm for public transportation rather than subways.

An ancient metropolis had already existed underneath the city, the greatest feat of building and engineering by the dwarfs and other races. A city that came to be from an alliance between the dwarfs and the dökkálfar, colloquially called dark elves because of their eyes, which was why Mecane had a higher concentration of these two particular races than anywhere else in Yuropa outside the Glittering Mountain's Black Iron Hall and the mystical Dra'zzt-yh-Vanheimr—which may or may not exist.

Mattheus and Brunilda were currently in this nameless underground city with Yngvarr, sitting at a watering hole the mechanist preferred after going through what appeared to be a giant manhole and heading down several hundred meters from the surface.