Lois Gladys Leppard

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.

Mandie and her friend Joe find a mystery at her Uncle John's old mine at Rose Creek, as Mandie continues to develop her Christian faith.

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.

The first night Mandie is at the White House she hears something in the hallway and is convinced that she sees George Washington-- who's been dead for 200 years! In the nights that follow, she sees him again in different places. What's going on?

Mandie and her friends stay at a chalet in Switzerland where singing is heard late at night in unintelligible words. What's really going on?

Mandie and her friends attempt to unravel the mystery which includes missing gold, a train wreck, and a gang of robbers disguised as "ghosts."

Mandie and her friends have a new mystery to investigate when the bells of the church suddenly begin ringing at midnight.

The school year is over and Mandie is coming home for the summer. Ever since Mandie's mothe told her she was going to have a baby, the thought of having to share her mother with a brother or sister has caused problems.

Mandie and her friends have a new mystery to investigate when strange sounds come from a seemingly abandoned fishing boat.

Mandie returns to school in Asheville, North Carolina, and finds herself the target of a prankster who manages to make her look like the troublemaker.