Talisman, Paperback/Tam Derudder Jackson

Time's running out... Rowan Sheridan is a warrior, a powerful being capable of bending time and space to take on the rogues and zombies the triple goddess unleashes on civilians. For centuries, his family has taken on the Morrigan, their successes against her legendary. But if he doesn't find his talisman by midnight of his twenty-eighth birthday, he faces death--or something worse. To convince her she belongs to him... Wallflower Alyssa Macaulay has no clue a community of supernatural Celtic warriors lives alongside her. Nor does she know she's a talisman, a member of that community. Orphaned at age four, she was raised by her grandmother, a druid of uncommon skill who deliberately kept Alyssa ignorant of her true self. A chance meeting in a bar on a cold winter's night upends the bookish grad student's life when Rowan introduces her to their world. Their love can end a centuries-old curse. Trying his sign on Alyssa and discovering she's his talisman, his fated mate, should be cause for their celebration. Too bad Alyssa thinks Rowan's only looking for a good time and she has no idea who and what they are. The goddess's imminent arrival doesn't give Rowan time to show her either. Somehow, he needs to compress the lifetime of training she should have had into a week--and convince her the one amazing night they shared is only the beginning of a lifetime of love. If they can live long enough...