Frete Grátis. Ensino de idiomas. Capa brochura e páginas em ótimo estado. Professor Puffendorf is a world-class inventor: where would any of us be without her Unburnable Toast or her Smell-o-Telephone? She shares her laboratory with her much-loved guinea pig, Chip, and Enzo, her rather lazy assistant. One day, when the professor goes out to address a conference, Enzo opens her top secret cabinet. Inside he discovers an array of potions promising to deliver anything from curly, luxuriant hair to a beautiful singing voice. Enzo realizes the secret formulas for these potions could make him unbelievably rich but first he decides to test them on poor Chip.