National Trust / Hay Festival Outdoors Book of the Year 2011. It's Time to Explore! 102 missions that challenge you to (re)discover our world. Become a guerilla explorer and extreme missioner with missions that defy gravity, see the invisible and test your mental agility. Each illustrated mission will challenge you in daring new ways. Draw, rub, smear, write, scrape, and print your findings and achievements as you complete each mission. Look inside... if you dare!