He hadn't confirmed that the ferret was, in fact, Draco. "Well, Ferret, I can’t find anything. Maybe you can do better." The Ferret cocked its head from to the side and darted off. Harry heard a dull thud as something heavy hit the floor, followed by a swooshing as the ferret pushed the book toward him. It seemed that The-Ferret-Who-Might-Be-Draco understood English. When he got to Harry, he danced around his legs and chittered loudly, quite pleased with himself.  