Sworn by Blood (Of the Blood Book 1)

To secure his future, Ian must convince the daughter of a love god to make a bargain on his behalf, before Underworld descends into chaos. Hazel doesn't want anything to do with her father's kind, the Sidhe. But when a conflict in Otherworld brings a hottie to her doorstep, she's the only one who can help, even if the fae don't deserve her loyalty.