Sequel to You Don't Know Jack Jack Carlisle has returned to the Center after an assignment designed to push him to the edge of his limits-and beyond. He is given just a few short days to get used to a new identity and a new team. He's been trained to assume a new identity, but working with a new team is more difficult, especially since it throws him back in the path of Leo McCormack, the boy who stole Jack's heart and handed it back broken into tiny...