The dwarvish world had just been too much for Zon.
The Waxy Wires's mountainhome had been a depressing scene in recent years. The Goblins had figured out a way to link undeath to a communicable disease, causing evil to spread throughout the world. The Humans, a somewhat reliable ally of the dwarves, had been decimated by the evil. The Elves, a less reliable punching-bag ALLY had also fallen. Now the dwarven mountainhomes were feeling the effect of evil. The sealing out sieges, the insanity, the insane mega-constructions that laborers were struggling to build were slowly causing Dwarvenkind's downfall. And Zon had simply had enough.
Together with the Tower of Artifacts, Zon got a charter to build a fortress. However, so that he got the freedom to do what he wanted, he had to accept the law of the Dwarven Civilizations set in stone 200 years ago:
All land 10 kilometers inland of the continent of Barbarians belonged to their owning Dwarven Civilizations, and all bedrock extending 10 kilometers out from the shore at least 3 meters under the ocean belongs to the aforemented owning Dwarven Civilizations
This left Zon with one choice. Build a fort over ocean. But what terrors did the ocean hold?
Ok, that ends the boring backstory. There's skeletal imps, harpies, a skeletal spiny dogfish, and sand and silty clay and a magma pipe. There's three layers of soil, but I prefer you guys head into the ocean as soon as possible to look cool. For the staircase, we would have to use bins, but that's one small price for style points.