Monster Max and the Bobble Hat of Forgetting
Robin Bennett, Tom Tinn-Disbury
Max is just an ordinary, slightly scruffy boy, until he burps, when he turns into a huge monster, with teeth like swords, who can jump over buildings, roar and eat whole dustbins. It’s great being a monster whose aim is to ‘protect and do good stuff’ until Max sneezes, when he turns back into a boy again, sometimes far from home and dressed only in his pants.
But something starts causing a lot of damage in his quiet suburb and it isn’t Max. Trailed by his nemesis, Peregrine, a boy his age who has invented a POOP (portable operating omni prison) machine to catch the monster, Max has to find the real culprit before Peregrine catches him…
Reviews

It was excellent because Monster Max and Peregrine used the Bobble Hat of Forgetting on the Grimp and they sent him back to Krit. I would recommend the book.
Prince Adolpho Bojangles 28.08.2024

So interesting
Officer Jewel Menace 12.07.2023

This was a really funny book. Max and Peregrine were eachother's nemisis but at the end of the book they were friends.
Constable Pug Teabag 05.08.2022

it was funny. I liked monster max. my favourite bit was when max and peregrine became friends.
General Crocodile Spaghetti-Hoops 12.09.2021

It was about this person called Max and he turns into a monster. He is trying to save his mum and the world from disaster. It is a good story.
Commander Rapper Endeavour 12.08.2021