Incarceron is not just a prison. It is a sentient world whose sole purpose is to cause suffering to its prisoners. The last creation of high technology, which appeared before humanity, which rejected them, plunged into a new Middle Ages. Young Finn, one of thousands of prisoners, is visited by visions from a past life, and he no longer believes that he was born and raised within these walls. Claudia, the daughter of Warden Incarceron, is also essentially a prisoner, although she lives outside the prison, in a luxurious corner of an artificially archaic world. One day, these two will simultaneously find a magical device - a key carved from crystal with a crowned eagle inside - and learn about each other's existence...< /p>