Star vs. the Forces of Evil Season 2 Episode 18 - Crystal Clear / The Hard Way >Glossaryck agrees to teach Ludo stuff from the Book of Spells. He first makes Ludo do some physical exercises as Ludo wanted to learn the hard way. Ludo learns and masters a levitation spell and is quite proud of his accomplishment. But when he learns there is a secret chapter that Glossaryck withheld from him but showed Star, he makes Glossaryck unlock them. Ludo reads the forbidden chapter and gains some dark magic, but when he talks with Glossaryck, he now has the voice of Toffee, who has possessed him.