Harry burst out laughing and turned to look at the animal now standing on his hind legs, giving him a look that was either "Yes, you dummy!’ or "Do you have a biscuit?"Harry pulled out his wand, "Mutata retrorsum," the reversal spell Professor Lupin used on Peter Pettigrew. Nothing happened. The ferret scratched at its neck, looked at him, then scratched again. Translation charms, like the sonorous charm, were aimed at the neck. The problem was that Harry didn’t know any ferret translation spells or any translation spells, for that matter. 