The X-Files meets 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 its spin-off series, the Lorien Legacies Reborn.

In this sixth and final 125-page novella, the captivating story of fan favorite characters Six and Sam reaches a dramatic conclusion!

The Mogadorians have captured Six and Sam and brought them to Las Vegas, Nevada, as part of their mysterious master plan to get their revenge on the Garde. It's the opening night of a spectacular new show, and dozens of special guests, the media, and tons of spectators have flocked to Sin City—which can only mean one thing: the Mogs are planning something truly devastating.

Luckily for Six and Sam, they've yet to find a prison that can hold them. When they do manage to escape, and finally regain control of their Legacies, they will have to race against the clock to try to stop their old adversaries once and for all. And if they can't succeed, they—and countless others—will suffer the consequences.

The Legacy Chronicles novellas are published as individual digital originals. The fourth, fifth, and sixth novellas will also be available together in one print volume: The Legacy Chronicles: Out of the Shadows.