Diamond city
(Book)

Fierce and ambitious, Aina Solís as sharp as her blade and as mysterious as the blood magic she protects. After the murder of her parents, Aina takes a job as an assassin to survive and finds a new family in those like her: the unwanted and forgotten. Her boss is brutal and cold, with a questionable sense of morality, but he provides a place for people with nowhere else to go. And makes sure they stay there. DIAMOND CITY: built by magic, ruled by tyrants, and in desperate need of saving. It is a world full of dark forces and hidden agendas, old rivalries and lethal new enemies. To claim a future for herself in a world that doesn't want her to survive, Aina will have to win a game of murder and conspiracy-and risk losing everything. --from Amazon.