Another laugh-out-loud monster adventure in the Billy and the Mini Monsters chapter book series, in FULL COLOUR, perfect for newly independent readers aged 6+ and fans of Claude and Horrid Henry. It's Billy's best friend's birthday, and the Mini Monsters have come to the party too! Gloop gets mixed up with the jelly, Fang-Face is after the cake and Trumpet's been swept away by a balloon. Billy can't save them all on his own, but who can he turn to for help?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 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