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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: March 2026
Quick Answer
What order should I read the I Am Number Four: The Lost Files series? Start with "Six's Legacy" (2011) and follow publication order through all 16 books.
The complete I Am Number Four: The Lost Files reading order is listed below in publication sequence.
Publication Order
Six's Legacy
2011
Nine's Legacy
2012
The Fallen Legacies
2012
The Search for Sam
2012
The Last Days of Lorien
2013
The Forgotten Ones
2013
Hidden Enemy
2014
Five's Legacy
2014
Return to Paradise
2014
Five's Betrayal
2014
The Fugitive
2014
The Navigator
2015
The Guard
2015
Legacies Reborn
2015
Last Defense
2016
Hunt for the Garde
2016
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