Five years ago, Sylen lost everything.

After a deadly attack on his village, the fifteen-year-old thief has survived alone in an overseas city, with nothing but a single magical stone-a faint reminder of his family.

When he enters a dangerous competition rumored to offer more than money, Sylen meets Finn, an energetic red-haired farm boy whose boundless optimism quickly bonds them as friends. But a masked rival changes everything when he claims to be holding Sylen's siblings alive on Calamity Island-a place torn apart by not-so-natural disasters.

Determined to save Sylen's family, the two boys join a crew of pirates bound for the island. To defeat the masked man and survive the disasters waiting ahead, they must work together to face those who destroyed everything Sylen once loved.