Bailey School Kids
The Adventures of the Bailey School Kids (or, simply, The Bailey School Kids) is a supernatural children's book series. The books in the series are co-authored by Marcia T. Jones and Debbie Dadey. John Steven Gurney is the original illustrator of the series (covers and interior illustrations) and originated the appearance of the characters. During the early 2000s some of the books were reissued with cover illustrations by Nathan Hale. In each story, the Bailey School kids encounter a relatively innocuous character (such as a school teacher, custodian, etc.) who may or may not be  a mythical being (e.g. a vampire, werewolf, dragon, etc.). The reader is left guessing whether the innocuous character is said mythical being or not. There are more than 80 books in the series, including "Super Specials", "Holiday Special Editions", the "BSK "Jr"" chapter books series, and the spin-off "Bailey City Monsters" series for grades 2-4. The first novel, "Vampires Don't Wear Polka Dots", was published in 1990.