Nightfall

Nightfall is the 6th 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 struggling. Grieving. Scrambling. But she knows one thing: she will not be defeated.

The Neverseen have had their victories—but the battle is far from over. It’s time to change tactics. Make sacrifices. Reexamine everything. Maybe even time for Sophie to trust her enemies.

All paths lead to Nightfall—an ominous door to an even more ominous place—and Sophie and her friends strike a dangerous bargain to get there. But nothing can prepare them for what they discover. The problems they’re facing stretch deep into their history. And with time running out, and mistakes catching up with them, Sophie and her allies must join forces in ways they never have before.

In this spectacular sixth book in the New York Times and USA TODAY bestselling Keeper of the Lost Cities series, Sophie must uncover the truth about the Lost Cities’ insidious past, before it repeats itself and changes reality.

(the summery is copied from Amazon.ca)