I Am Number Four: The Lost Files Books in Order
Below you'll find the complete list of I Am Number Four: The Lost Files books in publication order. This is generally the recommended reading order for the series.
Reading order verified: January 2026
Publication Order
Six's Legacy
Buy on Amazon2011
Nine's Legacy
Buy on Amazon2012
The Fallen Legacies
Buy on Amazon2012
The Search for Sam
Buy on Amazon2012
The Last Days of Lorien
Buy on Amazon2013
The Forgotten Ones
Buy on Amazon2013
Hidden Enemy
Buy on Amazon2014
Five's Legacy
Buy on Amazon2014
Return to Paradise
Buy on Amazon2014
Five's Betrayal
Buy on Amazon2014
The Fugitive
Buy on Amazon2014
The Navigator
Buy on Amazon2015
The Guard
Buy on Amazon2015
Legacies Reborn
Buy on Amazon2015
Last Defense
Buy on Amazon2016
Hunt for the Garde
Buy on Amazon2016
The Legacies
Buy on Amazon2012
Secret Histories
Buy on Amazon2013
Rebel Allies
Buy on Amazon2015
Zero Hour
Buy on Amazon2016
Frequently Asked Questions
The recommended reading order for the I Am Number Four: The Lost Files series is publication order: 1. Six's Legacy (2011), 2. Nine's Legacy (2012), 3. The Fallen Legacies (2012), 4. The Search for Sam (2012), 5. The Last Days of Lorien (2013), and 15 more. This is generally the best way to experience the story as the author intended.
The I Am Number Four: The Lost Files series by Pittacus Lore contains 20 books. The series began in 2011 and continues to be a popular choice for readers.
The I Am Number Four: The Lost Files series is written by Pittacus Lore. You can find more books and series by this author on our website.
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