Whistling in the Dark

CGI animated series. Alex and Zoe stumble upon a magic portal in the library and are transported to the world of Animalia, where animals can talk. The search for the Creeper leads Alex and Zoe to the Chamber of Legends, a dusty room filled with Animalian relics. Alex reveals that he helped a weasel escape from the tunnels, and only now does Alex learn that the weasel is none other than the notorious Creeper.