Finn is on the outside but it isn't what he imagined. With protocol in place, it's like a jail in the outside world. Claudia believes (or wants to believe) that he is the long lost prince. But Finn has no memories of his life before Incarceron. Except he still has his visions. Feeling guilty for leaving Keiro and Attia inside, Finn continues to look for a way back. The portal is not working and the warden has taken both keys inside the prision. Incarceron is desperate for a way out and will do anything to find it.
I enjoyed the second installment. This book saw the end of protocol, interesting choices made by Jared, and an appearance of "Sapphique."