Fallen Kingdom. Sin in Your Blood

Romantic fantasy with a unique author's world based on the seven deadly sins. A bestseller according to Spiegel magazine (Germany).
Since time immemorial, the kingdom of Jarakai has been ruled by the descendants of demonic lords – the princes of the... seven deadly sins. And only the eighth principality – of Truth – restrains their power.
The ruler of Truth always has two children. The first becomes the victim of an ancient curse and gains demonic power. The blood of the second is pure, and he is destined to become the ruler and savior of his people.
From childhood, Naviien, the firstborn daughter of the prince of Truth, is ready to give her life for her younger sister. When the principality of Truth is attacked, Naviien passes herself off as the heir to the throne and falls into the hands of the princes of the seven deadly sins.
Now the girl must convince the powerful rulers of her deception. But it seems that one of them, the arrogant Liran, knows her secret. And he is ready to shatter not only Naviien's plans but also her heart.
The youth novel "Sin in Your Blood" is the first part of the captivating duology "Fallen Kingdom" by German writer Dana Müller-Braun – it will be appreciated by fans of strong heroines, angels, demons, magic, and original universes that live by their own laws.