Another laugh-out-loud 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 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 Dark
2. Billy and the Mini Monsters: Monsters go to School
3. Billy and the Mini Monsters: Monsters go Swimming
4. Billy and the Mini Monsters: Monsters on a Plane
5. Billy and the Mini Monsters: Monsters go to a Party
6. Billy and the Mini Monsters: Monsters Move House
7. Billy and the Mini Monsters: Monsters on a School Trip
8. Billy and the Mini Monsters: Monsters at the Seaside
9. Billy and the Mini Monsters: Monsters at Halloween
10. Billy and the Mini Monsters: Monsters Go Camping
11. Billy and the Mini Monsters: Go Green
12. Billy and the Mini Monsters: Monsters at Christmas
13. Billy and the Mini Monsters: Monsters go to Hospital
14. Billy and the Mini Monsters: Monsters on a Sleepover