Can you take a picture with your head and memorize it? Cam Jansen and the Mystery of the Stolen Diamonds, by Dave A. Adlar, is a mystery book. Cam is called Cam because her brain works like a CAMera. Get it? CAM-era?! Haha! There are people who robbed a jewelery store and Cam takes a picture of the thief's in her brain. Then, she follows them to their house. The police show up and take the jewels. Find out more in the book. On a scale of 1-10, I give this book an 8. It almost, ALMOST, felt like I was in the book.