Goody Hall — Natalie Babbitt

An out-of-work actor, Hercules Feltwright, stumbles into a job tutoring Willet Goody, the only child of a widow living in a large, lonely house. Willet quickly involves his tutor in the search to discover the truth about his father. The mystery unfolds with the discovery of hidden treasure, a gypsy séance, and the frightening exploration of the tomb of Midas Goody.