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Series · fantasy
Keeper of the Lost Cities
The Keeper of the Lost Cities series by Shannon Messenger has 11 known books (11 published). It is best read in publication order, starting with Keeper of the Lost Cities (2012). Unraveled is the latest book with a fully recorded publication date.
- Books
- 11 known books (9 novels + 2 novellas)
- Published
- 11
- First published
- 2012
- Status
- ongoing
- Shelved under
- Fantasy
Start here: Keeper of the Lost Cities (2012)
— then read straight through in publication order.
Reading order
The date order of published books and any announced future entries — the default way to read the series.
- Book 1:
Keeper of the Lost Cities
Keeper of the Lost Cities, published in October 2012, opens Shannon Messenger's series with twelve-year-old Sophie Foster discovering she can read minds -- and that she isn't human, but an elf raised in the wrong world by accident. Her return to the hidden elvish world of the Lost Cities kicks off a long-haul middle-grade fantasy built for sustained, cliffhanger-driven attention. Alternative text for cover: Cover of Keeper of the Lost Cities - Book 2:
Exile
Exile sits between Keeper of the Lost Cities and Everblaze in the reading order, arriving in October 2013. Sophie keeps training her telepathic abilities and navigating a slow-burn love triangle as the shadowy Neverseen close in on the one power that makes her a target. Alternative text for cover: Cover of Exile - Book 3:
Everblaze
Everblaze precedes Neverseen in the Keeper of the Lost Cities series, published in November 2014. Shannon Messenger continues building out the elvish world's own schools, sports, and politics around Sophie as the series' central conspiracy deepens. Alternative text for cover: Cover of Everblaze - Book 4:
Neverseen
Neverseen, published in 2015 and running 680 pages, is the fourth Keeper of the Lost Cities novel -- named for the shadowy group hunting Sophie's telepathic abilities. Messenger keeps the mysteries seeding across books rather than resolving quickly, in the series' Harry Potter-and-Percy-Jackson-adjacent mode. Alternative text for cover: Cover of Neverseen - Book 5:
Lodestar
Lodestar, the fifth novel in Keeper of the Lost Cities, published in November 2016, continues Sophie's training and the slow-building romance and heavy themes -- memory manipulation, identity, trauma -- that Messenger handles with more weight than the series' sparkly covers suggest. Alternative text for cover: Cover of Lodestar - Book 6:
Nightfall
Nightfall, published in 2017, is the sixth entry in Keeper of the Lost Cities. Like every main-series book, it ends on a cliffhanger the next installment resolves, part of what makes the series' devoted online fandom track every ship and prophecy so closely. Alternative text for cover: Cover of Nightfall - Book 7:
Flashback
Flashback, the longest book in the Keeper of the Lost Cities series at 848 pages, appeared in 2018. Shannon Messenger keeps widening the elvish world's lore and politics as Sophie is pulled deeper into the conspiracy surrounding the Neverseen. Alternative text for cover: Cover of Flashback - Book 8:
Legacy
Legacy comes after Flashback and before Unlocked, published in 2019 as the eighth Keeper of the Lost Cities novel. It's followed directly by the plot-relevant novella Unlocked, which most fans treat as required reading rather than an optional extra. Alternative text for cover: Cover of Legacy - Book 9:
Unlocked
Unlocked follows Legacy in the Keeper of the Lost Cities series, published in 2020. Though a novella, it contains plot-relevant scenes that most fans read in its numbered slot rather than skip, ahead of book nine. Alternative text for cover: Cover of Unlocked - Book 10:
Stellarlune
Stellarlune, the ninth Keeper of the Lost Cities novel, appeared in 2022. Sophie's training and the Neverseen conspiracy continue to escalate in Shannon Messenger's long-running, richly detailed elvish world. Alternative text for cover: Cover of Stellarlune - Book 11:
Unraveled
Unraveled is a novella in the Keeper of the Lost Cities series, published in 2024, slotting in after Stellarlune. Like Unlocked before it, it carries plot-relevant scenes fans treat as required reading ahead of the tenth and final book, Elysian. Alternative text for cover: Cover of Unraveled
Key facts about the Keeper of the Lost Cities series
Our list has 11 books in the Keeper of the Lost Cities series. Since all 11 are out now, you can read the whole list today. 9 are novels, while the rest are 2 novellas.
Start with Keeper of the Lost Cities, since it opens the publication order in 2012. Exile is book 2, from 2013. Everblaze is book 3, from 2014.
Neverseen is book 4, from 2015. Lodestar is book 5, from 2016. Nightfall is book 6, from 2017.
Flashback is book 7, from 2018, while Legacy is book 8, from 2019. Unlocked is book 9, from 2020. Stellarlune is book 10, from 2022, while Unraveled is book 11, from 2024.
The list keeps the books in date order, while each title links to its own page. Each book page shows its dates and editions.
Unraveled is the latest book with a full release date, out on 3 December 2024. The catalogue marks it as ongoing, yet no next book has a date so far.
The books came out between 2012 and 2024, while their length runs from 350 to 848 pages. That is a run of 12 years.
Shannon Messenger has 14 books on our list. Additionally, they write Sky Fall. We shelve the books under fantasy.
About the Keeper of the Lost Cities series
Twelve-year-old Sophie Foster has always known she was different — she can read minds — but she's never known why, until a boy named Fitz appears and reveals she's not human at all. She's an elf, raised in the wrong world by accident, and her return to the hidden elvish world of the Lost Cities comes with a target on her back: her unique telepathic abilities make her exactly what a shadowy group called the Neverseen wants to control. Shannon Messenger builds out a richly detailed elvish society — its own schools, sports, technology, and politics — around Sophie as she trains her abilities, navigates a slow-burn love triangle, and gets pulled deeper into a conspiracy that spans the growing series.
This is a long-haul middle-grade fantasy in the vein of Harry Potter and Percy Jackson: a magic school, a found-family cast of specialist teen prodigies, and mysteries that seed for multiple books before paying off. Its particular hook is emotional density — Messenger is known for cliffhangers, slow-building romance, and genuinely heavy themes (memory manipulation, identity, trauma, grief) handled with more weight than the sparkly cover art suggests. Readers who want a sprawling world with real lore to dig into, plus a devoted online fandom that tracks every ship and prophecy, are the target audience, and the series rewards exactly that kind of sustained attention.
Frequently asked questions
How many books are in Keeper of the Lost Cities?
Nine main-series novels and two novellas (Unlocked and Unraveled) are published, with the tenth and final book, Elysian, confirmed by title but not yet released.
What order should I read Keeper of the Lost Cities in?
Publication order, starting with Keeper of the Lost Cities. Read the novellas Unlocked and Unraveled in their numbered slots (after Legacy and after Stellarlune) since they carry plot-relevant material rather than being purely optional side stories.
Is Keeper of the Lost Cities finished?
Not yet. Elysian, the announced tenth and final book, is still being written by Shannon Messenger as of 2026, with no confirmed release date.
When does Elysian come out?
No official release date has been set as of August 2026 - the author has said publicly she is still writing it. Treat any specific date circulating online as unconfirmed until announced on Shannon Messenger's official channels.
Do I need to read the novellas Unlocked and Unraveled?
Yes, effectively. Unlike many series novellas, these contain scenes and reveals that matter to the ongoing plot, so most readers treat them as required entries at their numbered point (8.5 and 9.5) rather than skippable extras.
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