Fingin had no drive in his life until he finds a half-drowned dog who becomes his best friend. That friend leads him to a cottage where a powerful woman sends him on a quest to find his grandmother. With his dog, Bran, and a donkey, Sean, they embark upon their journey. The problem is, his grandmother no longer seems to exist in this world.

Between falling in with a band of Fianna, nearly drowning in a river, and climbing to the rocky top of Skellig Michael, Fingin had just about had enough of this quest when some magical creatures sent him in the correct direction.

Once he finds his grandmother, he realizes nothing works out as it should have. She is far from what he remembers and even further from what he'd expected. And she entangled in a power struggle of her own and has little time to attend her wayward grandson.

Soon, a battle ensues, and Fingin is caught in the middle. He decisions will have long-term consequences for himself and those he loves.