Lodestar

Lodestar is the 5th book in Keeper of the Lost Cities book series.

One of my friends has all, if not most, of the books. She introduced me to these books.

 I've bowered most of them from her and have recommend the to the Middlesex County Library. I really like this these books and they take you on a emotional roller-coaster. 

I recommend this series to any age, they are so amazing!

Here is the summery

Sophie Foster is back in the Lost Cities—but the Lost Cities have changed. The threat of war hangs heavy over her glittering world, and the Neverseen are wreaking havoc.

The lines between friend and enemy have blurred, and Sophie is unsure whom to trust. But when she’s warned that the people she loves most will be the next victims, she knows she has to act.

A mysterious symbol could be the key—if only she knew how to translate it. Every new clue seems to lead deeper into her world’s underbelly and the Black Swan aren’t the only ones who have plans. The Neverseen have their own Initiative, and if Sophie doesn’t stop it, they might finally have the ultimate means to control her.

(the summery is copied from Amazon.ca)