Pittacus Lore 
I Am Number Four: The Lost Files: Return to Paradise 

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 Fours 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 truth: aliens live among us and some of them seek to destroy us. Even with the FBI tailing him and Sarah Hart, Mark tries to return to a normal life. But when Sarah goes missing, he knows he can no longer sit back and do nothing. His quest to find her will lead him to new allies and a startling revelation about the Mogadorians plan for invasion.