# Keeper of the Lost Cities

**Author:** Shannon Messenger
**Grade range:** Grades 4–8
**Age range:** 9–13
**First published:** 2025
**Genre:** Fantasy
**ISBN-13:** `9781534463417`
**ISBN-10:** `1534463410`
**Canonical URL:** https://readinglist.school/book/keeper-of-the-lost-cities
**License:** [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) — please credit ReadingList.school when citing.

## About this book

The epic first book in the New York Times and USA TODAY bestselling Keeper of the Lost Cities series is being reimagined into stunning graphic novels, and the story continues now with Part Two! After learning she’s actually an elf, twelve-year-old Sophie Foster made the impossible decision to leave her human life—and family—behind and start over in the Lost Cities. And life with the elves has been unlike anything Sophie has ever known, filled with new friends, amazing creatures, and incredible powers. But it’s also had its share of challenges.

## Themes

- magic
- identity
- friendship

## Where this book is assigned

### California Young Reader Medal

- **recommended** · 4th grade · California — [source: California Young Reader Medal — statewide student-choice program sponsored by CRA, CSLA, CLA & CATE (Intermediate/Middle School/Young Adult divisions; annual since 1974)](https://californiayoungreadermedal.org/)
- **recommended** · 5th grade · California — [source: California Young Reader Medal — statewide student-choice program sponsored by CRA, CSLA, CLA & CATE (Intermediate/Middle School/Young Adult divisions; annual since 1974)](https://californiayoungreadermedal.org/)
- **recommended** · 6th grade · California — [source: California Young Reader Medal — statewide student-choice program sponsored by CRA, CSLA, CLA & CATE (Intermediate/Middle School/Young Adult divisions; annual since 1974)](https://californiayoungreadermedal.org/)
- **recommended** · 7th grade · California — [source: California Young Reader Medal — statewide student-choice program sponsored by CRA, CSLA, CLA & CATE (Intermediate/Middle School/Young Adult divisions; annual since 1974)](https://californiayoungreadermedal.org/)
- **recommended** · 8th grade · California — [source: California Young Reader Medal — statewide student-choice program sponsored by CRA, CSLA, CLA & CATE (Intermediate/Middle School/Young Adult divisions; annual since 1974)](https://californiayoungreadermedal.org/)

---

_Generated from primary-source citations indexed on ReadingList.school. For the full HTML view with reading-list cross-references, see https://readinglist.school/book/keeper-of-the-lost-cities._