It's weird having an ace detective as your best friend, especially when you're keeping so many secrets from her. Sherry Sterling is a teenage detective that has solved more than her fair share of crimes, a prodigy in the detective field, and my best friend. As an ace-level crime-solver, she gets called upon to solve some cases every now and then, but tonight's case might be her biggest challenge yet: The legendary Phantom Thief who has pulled off many impossible heists is on the move, this time announcing that they are about to steal a precious diamond in the middle of a cruise auction! This a perfect stage for an ultimate showdown between the teenage ace detective and the daring phantom thief. It's showtime!