Storm Siren, Paperback/Mary Weber

"I raise my chin as the buyers stare. Yes. Look. You don't want me. Because, eventually, accidentally, I will destroy you." As a slave in the war-weary kingdom of Faelen, seventeen-year-old Nym isn't merely devoid of rights, her Elemental kind are only born male and always killed at birth--meaning, she shouldn't even exist. Standing on the auction block beneath smoke-drenched mountains, Nym faces her fifteenth sell. But when her hood is removed and her storm-summoning killing curse revealed, Nym is snatched up by a court advisor and given a choice: be trained as the weapon Faelen needs to win the war or be killed. Choosing the former, Nym is unleashed into a world of politics, bizarre parties, and rumors of an evil more sinister than she's being prepared to fight . . . not to mention the trainer whose dark secrets lie behind a mysterious ability to calm every lightning strike she summons. But what if she doesn't want to be the weapon they've all been waiting for? Set in a beautifully eclectic world of suspicion, super abilities, and monsters, Storm Siren is a story of power. And whoever controls that power will win.