Storm Siren by Mary Weber

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 handsome 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?