Studying ancient Norse mythology is supposed to be hard, but no one warned Caroline it would be life or death. Caroline Capello's carefully planned life turns upside-down when Loki, the enigmatic and irresistibly sexy Norse god, appears in her apartment, cuts her clothes off, and rocks her studious world all night long. The next morning, she's convinced she imagined it all, a result of working too hard and getting too little sleep--until she sees her clothes on the floor, cut down the middle. As Loki's unpredictable visits grow more intense and Caroline is pulled into a dangerous world of gods and magic, she turns to the ancient myths she studies for guidance. But is Loki as cruel and capricious as the stories suggest? Will he start Ragnar k, the apocalyptic final battle destined to destroy the gods and end the Nine Realms? And does she dare trust him with her heart? When Loki's appearances stop and Caroline's other-worldly dreams hint at a dark future, concern for her lover leads her to Val-Hall, the ancient home of inn's army, where she must put everything she has learned to the test. If she fails, there's far more than Loki's life at stake. The end of the world is on the horizon, and only a graduate student with a crush on a god can prevent it.