A New York Times bestselling series
A USA TODAY bestselling series
A California Young Reader Medal–winning series
Sophie battles the rebels—and recovers dark memories from her past—in this jaw-dropping fourth book in the bestselling Keeper of the Lost Cities series.
Sophie Foster is on the run—but at least she’s not alone.
Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy organization, but the only way to find answers is to start working with them. And as they settle into their new lives, they uncover secrets bigger than anything they’d imagined.
But their enemies are far from done, and unleash a terrifying plague that threatens the safety of an entire species. Sophie and her friends fight with everything they have—with new allies joining them—but every choice has consequences. And trusting the wrong person could prove deadly.
In this game-changing fourth book in the Keeper of the Lost Cities series, Sophie must question everything to find a truth that will either save her world—or shatter it.
Customer ReviewsSee All
A joy to read
I loved reading this book! So interesting and mysterious. This book series has so many twists and that’s what makes it fun to read. Though we will miss you Calla. One of the best kid/young adult books I’ve read.
This is my favourite book series of ALL TIME!! I'm SUPER EXCITED for book #5 in the KOTLC SERIES!!! if you haven't read the series yet get your life sorted b buy all the books c READ THEMMMMMMM!!!!!
All of these books were amazing. The keeper of the lost cities had everything u need in a book like romantic comedy and action it made u sit on the edge of ur seat wondering what's Going to happen next.