Kingdom of Demons - The War-Torn Kingdom, #5

With the peoples of Lamaira united behind him, Keo returns to his home country, intending to free it from the tyrannical rule of his childhood friend, Nesma, and stop the demons from rising once and for all. But when Nesma tells Keo that she has betrayed the demons and will lead him to the location of the demon's seal if he will trust her, Keo accepts her offer and travels with her to the place where the demons were sealed away a thousand years ago.
Their journey to the seal, however, will not be easy, with demons and Magicians attempting to stop them every step of the way. And even if Keo does reach the seal in time to stop the demons' return, he may find himself walking into a trap he cannot escape.