Fifth-grader Jennifer 'Cam' Jansen has a photographic memory, which she calls 'clicking.' When a robbery happens right before her eyes at a jewelry store, Cam uses her amazing ability to notice details everyone else misses. With her friend Eric, she follows clues and pieces together the mystery while the police are still confused. This fun, fast-paced story shows how careful observation and a sharp mind can solve even the toughest puzzles.