While thirteen-year-old Mandie, her friend Celia, and her grandmother visit Senator Morton in his home in St. Augustine, Florida, in 1902, the girls uncover a series of secret plots

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

When Mandie and Celia left the United States to spend the summer traveling with Mrs. Taft through Europe, they didn't expect that each new place they visited would have a mystery and adventure all its own

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

While visiting New York City in 1901, thirteen-year-old Mandie uncovers a mystery in the mansion where she is staying