"Not long after Portia Bennett and her mother move to a new town to start their lives over, Portia discovers a huge purple monster she names Jellaby and enlists the help of fellow student Jason, as they search for a way to find their new friend's true home--a search which may connect Portia to her missing father."--Volume 1. "Ten-year-old Portia Bennett and her friend Jason continue to search Toronto for clues to the origin of the purple monster,...