Mr. Will Needs to Chill is the eleventh book in the My Weirdest School series. 


Mr. Will, the local ice cream man, comes to Ella Mentry Elementary School to deliver some delicious treats to the kids, but Dr. Carbles has decided that sweet treats should no longer be allowed in school and will stop at nothing to ensure that no one breaks the rules, so AJ and the gang must find a way to lift the ban on sweets and get some ice cream no matter what.