The sun rises outside the castle gates, but the Golden Palace is shrouded in a veil of night. Bree became the one whom she despised for so long and with whom she promised never to connect her life. Now she is a faerie with an immortal heart beating in her chest. The one who swore love and loyalty turned out to be a traitor and used the heiress to steal the crown of the Unseelie Court. From now on, Sebastian is a true prince. But without the power that still flows through Bree's veins, the young man cannot take the throne of the Shadows and become a full-fledged king.

When the girl finds out that the Unseelie kingdom may perish, she goes to the high priestess, who will help find the queen Unseelie and save the Court. It becomes clear that the ancient prophecies do not lie, and Bree will play the role prepared for her in the fate of the faerie kingdom.