Inés del Castillo

Lots of little brothers can be pests and trouble-makers-but Amy's brother Arnie is a MONSTER … In this R.L. Stine middle-grade scare fest, Amy and her friend, Lissa, don't know what to do about Arnie's bullying, bad-boy behavior, and mean jokes and pranks. The little monster is ruining their lives! The girls decide it's payback time. Total humiliation for Arnie. They find a recipe for green slime on a YouTube channel and mix a big bucket to pour...