Gr 7 Up--Catherine Fisher's intelligent, genre-bending tale (Dial, 2010) will fascinate teens looking for something new and different. Finn is a 17-year old prisoner of Incarceron. His memories begin and end there. He knows nothing about his heritage except for vague memories that tease at his mind. The teen is determined to escape the prison fashioned centuries ago as a solution to the chaos created by man. Now Incarceron is self-sustaining and self-perpetuating--prisoners are born there and they die there. Legend claims only one man has ever escaped, Sapphique, and Finn is determined to follow in his steps. Claudia, the warden's daughter, lives sequestered in a castle surrounded by servants. But she, too, longs for escape--from a father who frightens her and from betrothal to an insipid prince. Finn and Claudia each discover a crystal key and are amazed to find that they can communicate with each other. As their trust in one another builds, each pledges to help the other. The two stories emerge, intertwine and, by the end, unwind in startling twists that will astonish listeners. Kim Mai Guest delivers an amazing, fully-voiced performance that vividly paints each character. Her pacing is impeccable and, in the last chapters, she delivers a one-two punch that will leave listeners breathless for the sequel, Sapphique, to be released in December.--Tricia Melgaard, Centennial Middle School, Broken Arrow, OK[Page 52]. Copyright 2010 Reed Business Information.