Twins Sophie and Josh are caught in the struggle between Nicholas Flamel and John Dee over the possession of a book of secret formulas, continue their magical training in Paris, pursued by Machiavelli, and go to England to learn Water Magic.
- Genre: Juvenile Fiction
- Subgenre: Science Fiction + Fantasy + Magic
- Age: Teen
- Publisher: Alfred a Knopf Inc
- Language: English
- Format: paperback
- Release Date: September 28, 2010
- Date Published: September 28, 2010
- Author: Michael Scott