House of Ice & Shadows — Sherrilyn Kenyon

From #1 New York Times and international bestselling author Sherrilyn Kenyon comes an all new world unlike anything ever seen before... TAKE BACK YOUR KINGDOM Gisela Bloodthorn is trained to kill. Taken hostage when she was a young girl, she has spent her life enslaved as an assassin in the court of the Centaurs, where only the strongest survive. Now, the Centaur queen has a final assignment for her: kill the queen's enemies and Gisela will go free. Fail and the only person Gisela loves will be sacrificed. But when she moves to assassinate her first target, the Outlaw, Dove Gan Athair. Gisela learns that the Outlaws aren't what they seem. Nor are they easily slain. Dove isn't just a bastard elf. He has a secret that could tear the Thirteen Kingdoms apart and one he will kill to protect. And when he learns the truth about Gisela and her family, he knows that she is key to ending the Centaur-Unicorn war before it destroys everything. But trust doesn't come easy to either of them. If they can't find common ground and fight their real enemy, both of them will lose everything and everyone they care for.