Frank and Joe Hardy were the original CSI crime-busters, two teens who raced around their little town of Bayport searching for clues and using their knowledge of Sherlock Holmes to outperform the adults in solving the crimes. They were heroes to every generation of kids who read their stories. This little volume has useful chapters on the subjects of “Surveillance,” “Detection 101,” “Girls, Girls, Girls,” and “Gathering Clues.” A mini edition with good, clean fun and the original-now retro-hip illustrations.