Fionn arrives on Arranmore Island just in time to battle the storm that's brewing.
His grandfather is the Storm Keeper and he's been saving up his magic in candles for his grandson to use to fight the coming darkness.
It doesn't help that Fionn's older sister Tara ditches him to fawn all over Bartley, the boy who's vying for the role of Storm Keeper. Or that the island is hiding a magic so dark, so sinister, it threatens them all -- Morrigan.
If the teens can find the entrance to the mystical Sea Cave, it will grant one wish -- but only one. What will Fionn wish for? To become the next Storm Keeper? Or to save his father, who drowned in a storm many years before? Or to save his sister Tara, who's lost somewhere deep in the bowels of the cave?
This was a great read!