Ward Against Disaster — Melanie Card

Ward de'Ath should be dead by now. Instead, he's chasing after a soul-eating creature-that he unleashed- and is bent on stopping her before she slaughters more innocents. Fortunately, Celia Carlyle remains by his side, a nobleman's gorgeous and deadly daughter, who is...well, dead. Celia claims she'll champion Ward wherever he goes, even when she thinks his quest is hopeless. He can only hope her pledge comes from her heart, and not because she's bound to him through his magic. When they enter Dulthyne, they stumble upon a dark power that threatens the entire town. Ward, with his unreliable necromancy, is determined to help but finds himself ensnared in the lure of white-hot magic...blood magic he struggles to resist. But if Celia's love is a lie, it might just doom his soul to the dark arts forever.