Lucy Alvenstein has a secret: deep beneath her house, there is a secret room – the Magical Perfumery! There, the most powerful magical perfumes are crafted. Since discovering the Magical Perfumery, Lucy, Mats, and Benno have taken on the mission to protect it. But one day, the meteor dust, which is the most important ingredient of the perfumes, disappears. Without it, Mats cannot free his father from the influence of the Perfume of Ruthlessness! Lucy and her friends will travel to Amsterdam in search of the thief. Their allies are an eccentric florist and a man who should have died long ago. Will they manage to find the meteor dust and save the Magical Perfumery?