In this exciting seventy-five-page prequel companion novella to the New York Times bestselling I Am Number Four series, discover the true origins of the traitorous Number Five. Before allying himself with the Mogadorians, before infiltrating the Garde, before committing the ultimate betrayal, Five was in hiding just like the others. But when his Cêpan dies, Five is forced to survive on his own. Eager to finally experience the world he was always kept apart from, Five soon gets involved with the wrong kind of people—the Mogadorians. In Five's Legacy see how one of Lorien's last hopes for survival became one of its most dangerous adversaries

In this thrilling one-hundred-page prequel companion novella, 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 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