Frank Cottrell Boyce

This is the story of Liam Digby who is twelve. Not that you'd know it because he's very tall for his age and starting to grow facial hair. Liam has a desire to see all that he can of life so when he gets the chance to enter a contest that promises a special prize he has to pose as an adult.

Eleven-year-old Noah sneaks along on his big sister's geography field trip. Everything goes wrong! Six kids are marooned on an uninhabited island. Their teacher has vanished. They're hungry. Their phones don't work and Noah has broken the internet.

There's no way of contacting home . . . Disaster! Until Noah discovers a treasure map and the gang goes in search of gold.