Spark your imagination, forge your own adventures and unearth long-lost skills.

In this long-awaited follow-up to his much-loved bestseller, written with his sons Cameron and Arthur, Conn Iggulden presents a brand-new compendium of cunning schemes, projects, tricks, games and tales of extraordinary courage.

Whether it's building a flying machine (keep your temper with this one) or learning how to pick a padlock (or your own front door, but not someone else's), discovering our forgotten explorers and the world's greatest speeches, or mastering the lauded task of solving a Rubik's cube, The Double Dangerous Book for Boys is the ultimate companion to be cherished by readers and doers of all ages.