In 1862 Nevada Territory, after finding his foster parents murdered and scalped, twelve-year-old Pinky Pinkerton, son of a railroad detective and a Sioux Indian, inherits a valuable deed and must hide from dangerous Whittlin Walt and his gang of desperados.

After escaping the ruthless desperadoes, P.K. finally feels safe in Virginia City and is ready to set up a new private eye business. But all the mysteries in town seem to be pranks until the day P.K. meets a young maid named Martha. Martha s employer has been found dead . . . and now the killer is after her. The mystery takes a grave turn when Martha disappears, so P.K. consults Poker Face Jace, an expert at people reading. With his help, P.K. inspects...

A ragged stranger and the prospect of losing her family's fortune lead Flavia Gemina and her friends, Jonathan, Lupus, and Nubia to a seaside villa where possible danger and treasure are close at hand.

At a refugee camp following the eruption of Mt. Vesuvius which buried Pompeii, Flavia and her friends discover that children are disappearing and a very powerful citizen might be involved.

Eleven-year-old Flavia and her friends Jonathan, Lupus, and Nubia are invited to visit Pulchra, who asks them to uncover who is trying to poison her mother.

When a Roman widow shows unusual interest in Flavia's father, Flavia decides to discover Cartila's true motives by performing twelve tasks, just like the Greek hero Hercules.

Jonathan and his friends are called to Rome by the emperor in the winter of 80 A.D. to find the new Prometheus believed to have brought an epidemic to the city, but Jonathan, obsessed with reuniting his parents, makes some unwise--and life-threatening--choices.