Dan Gutman 
My Weird School #9: Miss Lazar Is Bizarre! 

With more than 30 million books sold, the My Weird School series really gets kids reading!In this ninth book in the My Weird School series, Miss Lazar likes to dance around the school with a mop! She has a secret room down in the basement where she keeps the bad kids. She says cleaning throw-up is fun! Miss Lazar is the weirdest custodian in the history of the world!Perfect for reluctant readers and word lovers alike, Dan Gutman’s hugely popular My Weird School series has something for everyone. Don’t miss the hilarious adventures of A.J. and the gang.