Prisoner Finn managed to escape from Incarceron, the most perfect of prisons, meet with his betrothed Claudia and lay claim to the throne of the kingdom of Havaarn, because he is none other than Prince Giles, who disappeared many years ago. However, the treacherous Queen Sia is not going to give up power without a fight: she has her own candidate for the throne, an impostor posing as a prince, who is quite capable of challenging Finn. And most importantly, in the depths of the prison, Finn still has friends to whom he promised his help. Finn and Claudia's only remaining ally, sapient Jared, seems ready to betray them for the sake of the queen's promised healing from the fatal disease tormenting him. And Incarceron himself cherishes the same dream as thousands of his prisoners: to acquire a material body and break Out, into the outside World, without thinking at all about what consequences this will lead to...