Mandy and Celia try to trace the descendants of the righful owners of the pirate treasure they find in the schoolhouse basement.

Mandy, Celia, and Jonathan arrive in Holland wondering why Uncle Ned warned them that the tranquil land of windmills harbors a dangerous mystery.

Mandy is bewildered by the unhappy reaction of some of her Cherokee friends to her discovery of gold inside a cave and her Christian values are tested by a troublesome Cherokee cousin.

When she finds herself in charge of the Christmas Eve skit, Mandie, with Joe's help, tries to remind everyone of the holiday's true meaning by secretly gathering all the town's orphans and giving them parts in the play as well as a home in the church basement. Also includes a script version of the story with stage directions.

Strangers digging in the mountains, and the disappearance of Mandie's uncle and a Cherokee boy lead Mandie to a new mystery.