The sixth and penultimate book in the 1 New York Times bestselling I Am Number
Four series! For years the Garde have fought the Mogadorians in secret, but now
the invasion has begun.
John is on the front lines in New York City. The odds may be stacked against
him, but his best friend, Sam, has inexplicably developed a Legacy despite being
human—and he isn't the only one. As the pair tracks down Five and Nine amidst
the chaos, they encounter another teen with powers. Whether she is a friend or a
foe, however, remains to be seen.
Meanwhile, Six, Marina, and Adam are trapped in Mexico.