101 Things to Do Before You're Old and Boring (Used)

An interactive activity book by Richard Horne (with Helen Szirtes) aimed at tweens and teens, built around 101 dares and challenges — from "Help Save the Planet" and "Start a Blog" to "Become a Spy" — organised into colour-coded categories like Mischief, Family & Friends, and Create. It includes fill-in checklists and stickers to mark off each completed task, published in 2005/2006 by Walker Books.