Billy's on his FIRST EVER SLEEPOVER but it's all going WRONG. Can Billy and his Mini Monsters save it from disaster, and show that being with friends is what matters most of all? Another laugh-out-loud FULL COLOUR monster adventure in the Billy and the Mini Monsters chapter book series, perfect for newly independent readers aged 6+ and fans of Claude and Horrid Henry.Billy's going to a SLEEPOVER PARTY, at his best friend Ash's house. He's VERY excited but then everything starts to go WRONG. Sam's feeling sick, Jack is scared and Ahmed has INJURED his foot. Will the sleepover be a TOTAL DISASTER, or can Billy and his Mini Monsters show that being with friends is what matters most of all?Packed with full-colour illustrations, comic strips, maps and speech bubbles, with an action-packed plot, to appeal to even the most reluctant reader.Collect all the books in the Billy and the Mini Monsters series!1. Billy and the Mini Monsters: Monsters in the Dark2. Billy and the Mini Monsters: Monsters go to School3. Billy and the Mini Monsters: Monsters go Swimming4. Billy and the Mini Monsters: Monsters on a Plane5. Billy and the Mini Monsters: Monsters go to a Party6. Billy and the Mini Monsters: Monsters Move House7. Billy and the Mini Monsters: Monsters on a School Trip8. Billy and the Mini Monsters: Monsters at the Seaside9. Billy and the Mini Monsters: Monsters at Halloween10. Billy and the Mini Monsters: Monsters Go Camping11. Billy and the Mini Monsters: Go Green12. Billy and the Mini Monsters: Monsters at Christmas13. Billy and the Mini Monsters: Monsters go to Hospital14. Billy and the Mini Monsters: Monsters on a Sleepover