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The store links use this book's US print edition, ISBN 9781534463424.

Where Unlocked sits

Series
Book 8.5 of Keeper of the Lost Cities. See all Keeper of the Lost Cities books in order
The book before
Legacy
The book after
Stellarlune
Order checked
Last checked: September 24, 2026, against shannonmessenger.com
Place in the series
It is book 9 of the Keeper of the Lost Cities series. (shannonmessenger.com; read November 6, 2026) Keeper of the Lost Cities ... Legacy ... Unlocked
Next book
Book 10 is Stellarlune. (shannonmessenger.com; read November 6, 2026) Unlocked ... Stellarlune

These sources do not agree, so each value appears with the place it came from.

Checked facts about Unlocked

Under each line: where it was read, and when.

This edition
The edition checked here is a 747-page edition from Aladdin. (Library of Congress; read November 6, 2026) 9781534463424 ... 747 pages ... Aladdin

Shannon Messenger in brief

Birth
Born in 1991; Wikidata lists Southern California, United States, as the place of birth. (Wikidata, with no reference of its own and the place's own entry; read November 6, 2026)
Beginnings
Keeper of the Lost Cities was bought by an editor at Simon & Schuster and came out in 2012. (shannonmessenger.com; read November 6, 2026) an editor at Simon & Schuster offered to buy it ... Fall of 2012
Work outside writing
She studied art, screenwriting and television production before settling on books for young readers. (shannonmessenger.com; read November 6, 2026) She's studied art, screenwriting, and television production

All checked facts about Shannon Messenger

Topics in this book

A linked topic opens its page on bookslike.app, with every book on the site that shares it.

Genres

Topics

  • Ability
  • Elves
  • Identity
  • Identity (Philosophical concept)
  • Memory
  • Psychic ability

Book type

  • Fiction
  • Novels

Reading ages

  • Ages 8-12
  • Children's

Other books in Keeper of the Lost Cities

11 books listed so far

  1. Book 1: Keeper of the Lost Cities
  2. Book 2: Exile
  3. Book 3: Everblaze
  4. Book 4: Neverseen
  5. Book 5: Lodestar
  6. Book 6: Nightfall
  7. Book 7: Flashback
  8. Book 8: Legacy
  9. Stellarlune
  10. Book 9.5: Unraveled

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