About the book: 2017 / A Boat Parade takes place on the Shimmering Lake in the Forest of Friendship. Lily and Jess came to admire them. But the witch Griselda's henchmen tried to steal the magic sapphire that keeps the lake water clean. Only the stone slipped out of the hands of the thieves and disappeared! The lake immediately became cloudy, and now Lily and Jess must dive headlong into this turbidity to find and return the sapphire!