Rebel witch

"A witch... Rune Winters is on the run. Ever since the boy she loved, Gideon Sharpe, revealed who she was and delivered her into enemy hands, everyone wants her dead. If Rune hopes to survive, she must ally herself with the cruel and dangerous Cressida Roseblood, who’s planning to take back the Republic and reinstate a Reign of Witches—something Cressida needs Rune to accomplish. A witch hunger... Apparently it wasn’t enough for Rune to deceive Gideon; she’s now betrayed him by joining forces with the witch who made his life a living hell. Gideon won’t allow the Republic to fall to the witches and be plunged back into the nightmares of the past. In order to protect this new world he fought for, every last witch must die—especially Rune Winters. An impossible choice... When Rune makes Gideon an offer he can’t refuse, the two must pair up to accomplish dangerous goals. The more they’re forced into each other’s company, the more Gideon realizes the feelings he had for Rune aren’t as dead and buried as he thought. Now he’s faced with a terrible choice: sacrifice the girl he loves to stop a monster taking back power, or let Rune live and watch the world he fought so hard for burn"--