Blood Tithes - Obsidian City: Vampire Accords, #1

Magic and technology have found an uneasy truce after a tide of power rippled over their world. Vampires hold sway over dark cities. Shifters carve out fortresses in areas of the countryside and suburbs. The fae tries to finish what they have started by gaining a foothold back into this world. At least humans are left alone, a neutral party under the protection of the vampires. Or so they thought until Eden and her group were attacked while delivering the annual blood tithes into Obsidian City. Everyone was destroyed.except her. Now, she's drawn the attention of the master of the city.
Eden wants the killers. The master wants her. Blood Tithes is the first story of a new series set in the Obsidian City universe.