GHOST TWINS: MYSTERY AT HANOVER SCHOOL
*This is the ONLY edition authorized by the author, with updated text and new cover art*
The Ghost Twins hop on a school bus to visit Hanover, their old school. A new school has been built around the old bell tower—a new school that’s in deep financial trouble. When the twins explore the mysterious room at the top of the spiral staircase, they discover a secret that might save Hanover. But how can they make someone else discover it? Especially after they get locked inside?