Bloodtraitor

"Malachi Obsidian has been his guild's prophet ever since he was a child. Years ago, he envisioned a future in which his sister, Misha, ruled and the vampires' empire was destroyed. His people have made many questionable decisions to keep their dream alive, and now Misha is finally on the verge of becoming queen of the serpiente, just as Malachi predicted. When a mercenary from the vampires' inner circle proposes a daring plan to bring down the empire of Midnight once and for all, Malachi knows the shameful truth about Misha, but he must feign support for his unstable sister so his prophecy can be fulfilled. He must do it for his family, for his people--and for their freedom."