With the Moggadorian warships looming over populous cities, the Lorien Garde find new allies as human teens begin to develop legacies of their own.

Sixteen-year-old half-alien Sydney Chambers leaves Earth to seek his long-missing father, and unearths a devastating, centuries-old secret about humanity.

The Garde have suffered an unbearable loss. Number Five has betrayed them. Eight is gone forever. Ella has been kidnapped. The others are now scattered.

After her friends from the Human Garde Academy saved her from mysterious abductors, Taylor uncovers a mole from a secret organization within the school that is orchestrating the disappearance of other teens with special abilities.

In order to thwart the Mogadorian invasion, a group of the Garde head to a pyramid in Mexico in order to awaken a power that can save the world.

Presents three adventures of Sam and Six as they try to track down a former charge who may be a foe, work to escape an old enemy, and combat a deadly plot.

The second book of the #1 New York Times bestselling I Am Number Four series!

In the beginning, nine aliens left their home planet Lorien when it fell under attack by the evil Mogadorians. They scattered on Earth and went into hiding. They look like ordinary teenagers but have extraordinary powers. The Mogs have come for them. They killed Number One in Malaysia, Number Two in England, and

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Number Six-when John meets her in I Am Number Four she's strong, powerful, and ready to fight. But who is she? Where has she been living? How has she been training? When did she develop her legacies? And how does she know so much about the Mogadorians? In I Am Number Four: The Lost Files: Six's Legacy, discover the story behind Six. Before Paradise, Ohio, before John Smith, Six was traveling through West Texas with her Cêpan, Katarina. What happened...

The X-Files meets The X-Men in this digital original companion series that's set in the world of Pittacus Lore's #1 New York Times bestselling I Am Number Four series and coincides with Generation One.

This is the third 100-page novella, continuing the exciting story of fan favorite characters Six and Sam. Following their

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In this thrilling one-hundred-page prequel companion novella to the New York Times bestselling I Am Number Four series, discover what happened in the aftermath of the Mogadorians' attack on Paradise, Ohio, from Mark James-Number Four's bully-turned-ally. After Four leaves town to find the rest of the Garde, Mark is left behind to pick up the pieces. His school has been destroyed, his home burned down, and, worst yet, Mark now knows the horrifying...