Unlocked Book 8.5

· Simon and Schuster
4.6
56 reviews
eBook
768
Pages
Eligible
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About this eBook

Book 8.5 in the New York Times and USA TODAY bestselling Keeper of the Lost Cities series delivers what fans of the series have been begging for! Told in an exciting new way, the saga continues with plenty of huge reveals and shocking new twists—plus a complete series guide with beautiful black-and-white illustrations and other awesome bonuses!

In this extra special installment of the Keeper of the Lost Cities series, the story picks up right from Legacy’s particularly devastating cliffhanger. But chapters alternate between Sophie and Keefe’s perspectives to give readers deeper insights into both beloved characters. New powers will be discovered. Hard truths from the past will come to light. And all of your favorite characters will find themselves tested in ways they never imagined.

And that’s not all!

Unlocked also includes a comprehensive guide to the world of the Lost Cities, featuring new character and world details that have never been revealed before—plus fun bonuses like Keeper-themed recipes, a detailed map of the Lost Cities, gorgeous illustrations, and so much more!

Ratings and reviews

4.6
56 reviews
TJ Lyon
12 March 2025
Sooooo this book is well... REALLY REALLY BORING!!!!I mean there's like only 15 chapters. And I REALLY hate Keefe 's mom for giving him bad abilities. And how could Keefe just leave like that ಥ⁠╭⁠╮⁠ಥ What happened too team Foster-Keefe ? Sophie and Keefe were meant for eachother.
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Terrible Content
26 November 2020
I started reading the series a few months ago so I never had to wait. But now it is killing me. Also I am hoping that in this book Keefe and Sophie finally get together. Team Foster-Keefe for the win ! Edit: Finely the book came out and it is incredibal! Though I am kinda heartbroken by the ending. Entire way Shannon still made an amazing book that I will love till the end of time. 😊
62 people found this review helpful
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Lauren Kelly
27 April 2020
I LOVE SHANNON MESSENGER SHE IS AN AMAZING WRITER!!! I started reading Keeper of the Lost Cities about 1½ ago and I already finished it! I am SO excited to read unlocked!!!! It already sounds exciting and like Sophie is going to die again! But that's the whole point of the series and that's why I LOVE it so much! Thank you Shannon for Keeper of the Lost Cities. You ate amazing.
57 people found this review helpful
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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 studied art, screenwriting, and television production but realized her real passion was writing for kids and teens. She’s the internationally, 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 young adult series. Her books have been featured on multiple state reading lists, published in numerous countries, and translated into many languages. She lives in Southern California with her family and an embarrassing number of cats. Find her online at ShannonMessenger.com and @SW_Messenger on Instagram, X, and Facebook.

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