Ashenwell (The Void mirrors)

Ashenwell is the Crown of the Western kingdom, a series of Islands where magic and science is in full swing both being industrialised, essentially splitting the city in half, the City then squabbled, until a darker threat showed up. But this book is not about that, the darker threat ending is where the story starts and a fledgling peace between the two factions after the Dark mages wee pushed into the northern mountains. This story is about what happens next