Mandie, Snowball, and Celia become trapped in a dark and creepy secret room in the schoolhouse basement. Can Mandie discover the meaning to the mysterious writing on the wall and find a way out?

After visiting with her Cherokee relatives, Mandie receives word from Jonathan Guyer about a mysterious secret, but when she tries to find him, she learns that he has fled to Long Island, so she decides to find out the secret for herself.

Someone is going through Mandie's and Celia's rooms and Mandie's graduation dress is missing.

Mandie arrives home for spring break with a mystery already in progress. She is determined to find out who is hiding in the dilapidated house on the Shaw property. Ages 8-13. Mandie book 34.

Can Mandie solve the mysterious writing on the wall?

Mandie and her friends search for Mandie's aunt's missing turkey. In doing so, they uncover other mysteries including a missing doctor.

In 1900, Mandie is searching her dead uncle's mansion for a missing will when she finds a secret tunnel and strangers who claim to be her relatives.