A New York Times bestselling series
A USA TODAY bestselling series
A California Young Reader Medal–winning series

Dark schemes unfold and Sophie’s loyalty is pushed to the limit in this thrilling fifth book in the Keeper of the Lost Cities series.

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.

About the Author

Shannon Messenger graduated from the USC School of Cinematic Arts, where she learned—among other things—that she liked watching movies much better than making them.

She’s studied art, screenwriting, and film production, but she realized her real passion was writing stories for children. She’s the New York Times and USA TODAY bestselling author of the award-winning middle grade series, Keeper of the Lost Cities, as well as the Sky Fall series for young adults.

Her books have been featured on multiple state reading lists, published in numerous countries, and translated into many different languages.

She lives in Southern California with her family—and an embarrassing number of cats. Find her online at ShannonMessenger.com.