Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Six’s Legacy | 2011 | Pittacus Lore | Buy |
| 2 | Nine’s Legacy | 2012 | Pittacus Lore | Buy |
| 3 | The Fallen Legacies | 2012 | Pittacus Lore | Buy |
| 4 | The Search for Sam | 2012 | Pittacus Lore | Buy |
| 5 | The Forgotten Ones | 2013 | Pittacus Lore | Buy |
| 6 | The Last Days of Lorien | 2013 | Pittacus Lore | Buy |
| 7 | Five’s Betrayal | 2014 | Pittacus Lore | Buy |
| 8 | Five’s Legacy | 2014 | Pittacus Lore | Buy |
| 9 | Hidden Enemy | 2014 | Pittacus Lore | Buy |
| 10 | Return to Paradise | 2014 | Pittacus Lore | Buy |
| 11 | The Fugitive | 2014 | Pittacus Lore | Buy |
| 12 | Legacies Reborn | 2015 | Pittacus Lore | Buy |
| 13 | The Guard | 2015 | Pittacus Lore | Buy |
| 14 | The Navigator | 2015 | Pittacus Lore | Buy |
| 15 | Hunt for the Garde | 2016 | Pittacus Lore | Buy |
| 16 | Last Defense | 2016 | Pittacus Lore | Buy |
The Lost Files are a series of sixteen novellas that expand the Lorien Legacies universe. Each one tells a shorter story focused on a specific character, filling in backstory that the main novels only touch on. Six’s Legacy, the first release, reveals the early experiences of Number Six before the events of I Am Number Four.
Later entries cover characters like Number Five, Sam Goode, and various Mogadorian figures. The novellas were also collected into print volumes (The Legacies, Secret Histories, Rebel Allies, and Zero Hour) that bundle three or four stories together.