Arthur Parnassus has rebuilt his life on the remote and peculiar Marsyas Island, where he cares for six dangerous yet magical children in a mysterious orphanage. Haunted by his own painful past as an orphan on that very island, he's determined to give them the love and safety he never had.

With Linus Baker—the love of his life and a former caseworker in the Department In Charge of Magical Youth—by his side, and the support of the island's sprite, Zoe Chapelwhite, and her girlfriend, Mayor Helen Webb, Arthur has found happiness he never thought possible.

But when a summons demands he confront the dark secrets he's kept buried, Arthur faces a battle not just for his own future, but for the future of his family and all magical people. And when a new child arrives—one who embraces the name monster that Arthur has fought so hard to shield his children from—the stakes become even higher.

As their tight-knit family teeters on the brink, Arthur must decide how far he's willing to go to protect those he loves. Will they stand together and emerge stronger than ever? Or will the shadows of the past tear them apart?

Welcome back to Marsyas Island. Arthur's story is just beginning...