Hazel sets out to prove that she, not her baby brother, is the worst monster anywhere.

Hazel sets out to prove that she, not her baby brother, is the worst monster anywhere. Since the Baby Monster arrived, no one notices big sister

Billy, a bad-tempered little monster who does not want to be in nursery school, throws tantrums that only result in his teacher's giving him prai

Billy is reluctant to share his birthday presents with the other little monsters, but then something happens to make him change his mind.