The Magician by Michael Scott

This is book 2 in theSecrets of the Immortal Nicholas Flamel series.  It's full of action and suspense.  A great YA book.

 Nicholas and Perenelle Flamel, who have had the forumla for eternal life, meet prophecized twins who have the power to either save the world or destroy it. The Codex which holds all the spells needed to do so, including the recipe for the the elixer of life, was taken, but Josh, one of the twins, had the foresight to tear out the last 2 pages, saving the bad guys, Dr. John Dee, from Elizabethan England fame and his minions, from destroying things.
Perenelle is captured and is in Alcatraz. Nicholas and the twins, and Scatty, the vampire warrior flee to Paris.

First Sophie and then Josh begin learning how much power they have and slowly learn how to handle it.

496pp.