Demetrius, a huge and grim warrior, is avoided even by his fellow guardians. He's too gloomy. Too spoiled. And, thanks to her own heritage, she realizes that it is better to stay away from everyone. Isadora has disappeared. These words echoed like a deafening roar in the guardian’s head. For her own sake, he avoided the fragile princess, his betrothed. And now she's been kidnapped. And in order to get her back, he will have to plunge into the dark corner of his soul, from which he has always stayed away. While demons destroy the human world, and Demetri's devotion to the guardians is tested to the limit, he realizes that Isadora is stronger than she seems. And only by finally letting her into his heart can he save them both.