Fallen Gods (Hilos del destino, 1)

They said the gods were a myth. That giants were just stories told around dying campfires. They lied. The gods aren't dead; they're merely asleep, trapped in mortal bodies, scattered across the world, waiting for the right spark to awaken them. And my father is the most ruthless of them all. He raised me to obey. To bleed. To be his sword when the time comes. And now he's sent me to the University of Endir, a place steeped in ancient bloodlines and deadly secrets, to retrieve Mjölnir, the hammer of legend. If I fail, everyone I love will die. But Aric Erikson wasn't part of the plan. He's the enemy's heir. Distant. Dangerous. And… the only person I can't allow myself to fall in love with. He's completely isolated himself behind a wall of ice, but the more I'm ordered to decipher him, the harder it is to remember where the lies end and where I begin. Now, all that separates me from a war that will decide the fate of the world is a mission I didn't choose… and a man I should never have loved. But if I'm the spark, perhaps he's the fuse. And the gods? They're about to awaken in fury.