Libby lives a lonely life with her mean stepmother, her ineffectual inventor father, and her nasty step-brother, Rex. Then she makes a new best friend: Wulfie, a purple wolf-like creature who can shrink down very small or grow very big (usually on purpose, often not). Wulfie is a sweet but mischievous character who helps get Libby out of difficult situations at school and to get revenge on Rex—all the while just managing not to be discovered. From the Award-winning creator of ground-breaking animated series Punky comes a tale of magic, mischief, and most importantly, friendship.