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. 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 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