In 1900, sixteen-year-old Paris, a Chicago teenager with a fondness for Sherlock Holmes, travels to Paris, France, to visit her uncle, a prominent scientist, only to find on her arrival that he has died under circumstances sufficiently mysterious to makeher determined to investigate on her own.

Investigating the death of her uncle in Paris at the turn of the century, an American teenager meets the famous magician, Harry Houdini.

During a visit to renowned artist Claude Monet, sixteen-year-old Paris MacKenzie stumbles upon a corpse that leads her and dashing Marcel Fleury to a deadly saboteur and a forgery network

Living in Paris at the turn of the century, a sixteen-year-old American girl uses an experimental diving bell to explore the floor of the Seine and uncovers a trunk which may be linked to the theft of a priceless diamond.

When Paris' mother is mistaken for a famous duchess and kidnapped, only Paris can save her.

The murders of several scientists test Paris' courage and wit as she tries to solve the mystery of their deaths, and is led through the subways of Paris and the backstage world of the Folies Bergeres.