Pack your sleeping bag and prepare for a night of museum mayhem. Horrid Henry knows that a class sleepover trip to the local museum sounds like a recipe for total boredom. To liven things up, he decides to invite a few unexpected party crashers. Soon, he has his classmates convinced that a terrifying zombie vampire is on the loose, and even Miss Battle Axe might be in danger. But the spooky school trip is only the first of four wildly funny stories. Watch as Henry manipulates Perfect Peter into handing over all his savings, creatively adapts one of Peter's stories to avoid doing his own homework, and clashes with a celebrity chef who is determined to ban burgers and chips from the school cafeteria forever. Bursting with clever tricks, hilarious dialogue, and outrageous plots, this book is a non stop ride of fiendish fun. Step into Henry's world and discover why being the absolute worst can sometimes lead to the very best adventures.