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TL;DR: Twelve-year-old Sophie Foster has always known she is different. She can hear other people's thoughts, and she is already a senior in high school. Then a mysterious boy named Fitz reveals the truth: Sophie is an elf, raised among humans. She is taken to the hidden elvin world of the Lost Cities, where she must learn magic, find a new family and uncover secrets about her past.
Table of Contents
Keeper of the Lost Cities at a Glance
| Author | Shannon Messenger |
| First published | 2012 |
| Type | Fantasy |
| Best for | young readers who want a magical school adventure with friendship and mystery |
Keeper of the Lost Cities is the first book in Shannon Messenger's series of the same name, published in 2012. The series has become a long-running favorite with young readers. Below you will find a part-by-part summary, five key takeaways, ideas worth remembering and a note on who will enjoy it.
Content note: Includes kidnapping, danger and peril.
Main Characters
- Sophie Foster: A telepathic girl who learns she is an elf.
- Fitz Vacker: A friendly, handsome elf boy.
- Keefe Sencen: A funny, rebellious classmate.
- Dex Dizznee: Sophie's loyal best friend.
- Grady and Edaline: The couple who adopt Sophie.
What Happens, Part by Part (Contains Spoilers)
A secret
Sophie lives with her human family in California. She is a genius and can read minds, which she hides. During a school trip to a museum, she meets Fitz, who can also read thoughts. He tells her she is an elf and that she belongs in the Lost Cities, a hidden world of elves.
The Lost Cities
Sophie leaves her human family and goes to the Lost Cities. The elves have powers, and many can teleport using light. She is enrolled at Foxfire, a prestigious academy, where she studies subjects like alchemy and telepathy. She makes friends with Dex, Fitz's sister Biana and the troublemaker Keefe.
A new family
Sophie is adopted by Grady and Edaline, a couple who lost their daughter. At first, they are distant, but they grow to love her. Sophie struggles to fit in, as she was raised by humans. She also learns that her memories may have been changed and that some elves are suspicious of her.
Fires and secrets
Strange fires are breaking out in the human world. Sophie suspects they are linked to the elves and to her own past. She discovers that a secret group, the Black Swan, may have created her for a special purpose. Her abilities are unusual and powerful.
Kidnapped
Sophie and Dex are kidnapped by mysterious figures. Sophie uses her powers to help them escape. She learns more about her abilities and realizes that she has enemies. Back home, she is welcomed by her new family and friends, but the mystery of who she is, and who is after her, has only begun.
5 Key Takeaways
- Being different can be a strength.
- Family can be found and chosen.
- Trust takes time to build.
- Secrets can be dangerous.
- Courage grows through challenges.
Ideas Worth Remembering
These are paraphrased, not direct quotes:
- You can belong in more than one place.
- Friends help you find your strength.
- Every answer can lead to new questions.
Who Should Read Keeper of the Lost Cities?
Read Keeper of the Lost Cities if you enjoy magical schools, friendship and mystery. It suits ages 9 to 14.
About Shannon Messenger
Shannon Messenger is an American author who studied film at the University of Southern California. Keeper of the Lost Cities grew into a series of more than ten books, plus companion books. She also wrote the Sky Fall series for older readers. She lives in Southern California.
Questions to Think About After Reading
These prompts work for solo reading, a book club or a classroom discussion of Keeper of the Lost Cities:
- How does Sophie adjust to the Lost Cities?
- Why do some elves distrust her?
- What might the Black Swan want?
How to Use This Summary
Use this page as a quick reference before a book club meeting, an exam, or a decision about whether Keeper of the Lost Cities is worth your time. The takeaways are written to stand on their own. If a point interests you, go back to the book for the author's full story, characters and style, which no short summary can replace.
A Note on Accuracy and Spoilers
This summary is based on the published text of Keeper of the Lost Cities, not on any film, series or stage adaptation, which often change the story. Details are kept at the level of the main events so that nothing is invented. Editions differ slightly in length and wording, so page numbers and small details may vary between copies.
Should You Read the Book?
Yes. It is fun and imaginative, and it begins a long, beloved series.
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What to Read Next
- Exile by Shannon Messenger: the second Keeper book
- Harry Potter and the Philosopher's Stone by J.K. Rowling: a hidden world of magic
- The School for Good and Evil by Soman Chainani: a magical school full of twists
Related: 15 Books Like Keeper of the Lost Cities for Teens You’ll Love · 15 Books Like Keeper of the Lost Cities for Adults You’ll Love
Frequently Asked Questions
What is Keeper of the Lost Cities about?
A telepathic girl learns she is an elf and moves to a magical world.
Who wrote it?
Shannon Messenger, in 2012.
Who is Sophie Foster?
A twelve-year-old elf raised by humans.
What are the Lost Cities?
The hidden world of elves.
What is Foxfire?
An elite elvin academy.
Who is the Black Swan?
A secret group linked to Sophie's past.
Is it a series?
Yes, with more than ten books.
What age is it for?
About 9 to 14.
How long is it?
About 490 pages.
Is there a film?
A film adaptation has been announced.
Is there romance?
A little, which grows in later books.
What comes next?
Exile.
Is the series very long?
Yes. Several later books are more than 700 pages, so fans have a lot to read.
Is Keeper of the Lost Cities worth reading?
It depends on what you want. The book is best for young readers who want a magical school adventure with friendship and mystery. If that describes you, it is likely a good fit. If not, the titles under What to Read Next may suit you better.