With her mother about to give birth on Valentine's Day, Cam has plenty on her mind, but that doesn't interfere with her detective interests or her famous photographic memory. Cam, her friend Eric, and his mother are in the hospital waiting room, when Eric's mother discovers that her purse has been stolen. Quick-thinking Cam goes into action, discovering the thief's identity, recovering the purse, and foiling a car theft as well. The 25th Anniversary sticker on the cover is a reminder of the long-lasting appeal of this accessible mystery series. The newest story within will not disappoint; it offers familiar characters in a new situation, foreshadows events with simple clues, and follows through with a satisfying ending.

Girl detective Cam Jansen helps hospital security guards nab a thief on Valentine's Day. But here's a first: Cam herself is finally stumped. The big-sister-to-be doesn't figure out that her parents are expecting twins (and most young readers won't either). This twist helps Cam come across as a little more three-dimensional than usual. Natti's black-and-white line drawings round out the text.