Love Charms — Margaret Clark

Laura's adventurous grandmother sends her a birthday charm to add to her silver bracelet, just as she does each year. This time it's a golden cat and it's gorgeous! But at her birthday sleep over someone steals it. Does the thief belong to the Populars or the Fringes -- the two competing girl groups at the party? Luckily, Laura's mother is a private investigator and takes time out from tracking down the One-Eyed One-Armed bandit to help her with ideas.