Book 4 - Norbert learns about the circus for the first time. Intrigued, he convinces his friends to join him in experiencing the spectacle. Little did they know, Norbert ended up becoming the star of the show! Curious to discover how he manages to steal the spotlight? You'll need to grab a copy of this book to unveil the exciting and wacky adventures that unfold at the circus. Prepare for a wild ride!