Lonely Planet Kids Brain Teasers on the GoWho's the biggest smarty pants in your family? Find out with Lonely Planet Kids Brain Teasers on the Go, a selection of puzzles, challenges and games suitable for all members of the family. With 40 reusable wipe clean cards and an erasable pen, this fun addition to Lonely Planet Kids is perfect for long car journeys, quick trips to the shops, and everything in between. A must pack addition on any family trip, it comes stored in a small and portable