The Pied Piper had his reasons for enchanting the children of Hamelin and stealing them away—ones rooted in a deep history of wild magic. Mari and her brother Jakob are among the children who followed the piper's song, and they are now trapped in a beautiful but cruel world inhabited by a horrid Beast. They must remain there until he finds the right child, the chosen one, who can lift his century old curse. But the price of breaking the curse is a terrible one. This fast-paced, richly fantastical continuation of a familiar tale is a powerful story of a family torn apart by tragedy, and the magical adventure that heals them.