Enter the world of secret codes, cunning puzzles, and mind-bending conundrums. Inspired by the Raising Arcadia series, this book offers a step-by-step guide to each of these three types of problems and a quiz to test your progress. Use it to hone your own detective skills, or to baffle your friends, parents and teachers. This book contains new codes, puzzles and conundrums not seen in the original Raising Arcadia books!