The Enchantress by Michael Scott

The two that are one must become the one that is all. One to save the world, one to destroy it.
San Francisco:
Nicholas and Perenelle Flamel have one day left to live, and one job left to do. They must defend San Francisco. The monsters gathered on Alcatraz Island have been released and are heading toward the city. If they are not stopped, they will destroy everyone and everything in their path.
But even with the help of two of the greatest warriors from history and myth, will the Sorceress and the legendary Alchemyst be able to defend the city? Or is it the beginning of the end of the human race?
Danu Talis:
Sophie and Josh Newman traveled ten thousand years into the past to Danu Talis when they followed Dr. John Dee and Virginia Dare. And it’s on this legendary island that the battle for the world begins and ends.
Scathach, Prometheus, Palamedes, Shakespeare, Saint-Germain, and Joan of Arc are also on the island. And no one is sure what—or who—the twins will be fighting for.
Today the battle for Danu Talis will be won or lost.
But will the twins of legend stand together?
Or will they stand apart—one to save the world and one to destroy it? From Goodreads.

This book starts exactly where book five stopped and it is full of surprises. This book is a bit confusing at times as some of the characters are both in present time in San Francisco and back in time in Danu Talis 10.000 years earlier.
This book was really good as it was full of twists and turns that I did not expect. Also some of the bad guys might not be as bad as they seem and some redeem themselves.

This book qualifies for:
I Love Library Books Reading Challenge 2014
You Read How Many Books? Reading Challenge 2014
Crazy Challenge Connection - Oktoberfest
Goodreads Reading Challenge 2014
Crazy Challenge Connection A-Z Locations - 2014
Novel Books & Reading Challenges - Baby Got Book
Nothing but Reading Challenges - Spell it Out - Animal Alphabet (O-owl)
Crazy Challenge Connection Bard of Avon
Novel Books & Reading Challenges Tower Teams III