In this exhilarating one-hundred-page companion novella to the New York Times bestselling I Am Number Four series, Mark James is on the run—and on the wrong side of the law—but he'll do whatever it takes to save Sarah Hart and help the Garde.

A sequel to I Am Number Four: The Lost Files: Return to Paradise, this novella picks up with Mark racing to Dulce, New Mexico, evading capture from both the Mogadorians and the FBI. On the road, his mysterious new ally—a fellow blogger from They Walk Among Us who Mark knows only by the screen name GUARD—sends him a care package to help in his quest to find Sarah. Inside is a stack of cash, high-tech equipment, and some seriously advanced weaponry, all begging Mark to once again ask the question: Just who exactly is this guy? As Mark gets closer to tracking down Sarah, he also gets closer to discovering the identity of this enigmatic figure who seems to know so much about the Loric. When the truth about GUARD is finally revealed, nothing will ever be the same.