The Amazing Mystery Show (The Boxcar Children Series #123)

The Boxcar Children have been chosen to play in an exciting new game show! A camera crew is following the Aldens around the city of Philadelphia as they compete with another brother-and-sister team in a search for clues. The search isn't easy, though, especially when someone has tampered with the Aldens' map and stolen one of Benny's treasures! Why is their team being sabotaged?