Karen's Mystery (Baby-Sitters Little Sister Super Special #3)

Karen loves solving mysteries. SHe even starts her own detective agency with her best friends, Nancy and Hannie. As head detective, Karen knows how to use a special Decod-R ring and how to dust for fingerprints. Being a detective is gigundo fun. But now Karen’s pet rat, Emily Junior, is missing! Can Karen solve her toughest case yet?