The group must find the Black Flower before it falls into the hands of the ruthless Willem, an old enemy of the family, who wants to use its power for his own dark purposes. Their quest will lead them to secret greenhouses, forgotten libraries, and deep into the history of the Scentifleurs, the distinguished perfumers.
- Theme: Mystery, Adventure, Magic, Friendship, Ecology/Nature
- Style: Full of suspense, riddles, and discoveries.
- Age: 10+ years