Quick recap
Poppy travels toward Atlantia against her will with Casteel and Kieran and tries to escape more than once. Casteel wants to marry her to trade her for his brother, Malik, and she agrees if he helps find her own brother, Ian, left behind in Solis. Poppy's powers grow: she heals a boy in front of a crowd and starts sensing the wolf shifters. They make up and marry, and the sky goes dark as a sign from Nyktos. In Atlantia, a mob stones her at a temple, and her power erupts and kills them. At the end, Casteel's mother, Queen Eloana, takes off her crown and asks everyone to bow to Poppy, the last descendant of Nyktos.
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