"Harry likes to look his best - new white sneakers for indoor games, designer jeans for evening camp barbecue. But when he meets Bear Grylls exploring an underground maze of caves and tunnels, Harry realizes that his clothes are going to be put to the test - and so is he, if they want to make it back to the surface..."--Page [4] of cover.

"First published in Great Britain in 2018 by Bear Grylls, an imprint of Bonnier Zaffre, a Bonnier Publishing Company"--Title page verso.