by Marie Malekowsky (Author), Marie Malekowsky (Illustrator)

Where have all the monsters of Mayhem Elementary been? After many days of poor attendance, Finn Fiend and the monsters in Miss Gloop's class learn a lesson about the importance of good etiquette. With a little help from Mayhem Elementary School's nurse, Finn Fiend and his friends do their best to keep themselves and others healthy.