A long time ago, nymphs and other elementals roamed the Earth freely. Things have changed.
Now, the majority of nymphs have been captured by humans and enslaved due to their unique powers. North, an oceanid, is a victim of this cruel trade. Her ability to predict the tides means she was auctioned off to a hunting crew where she is forced to work against own kind. She spends her days craving freedom and the cool, watery embrace of her home: the ocean.
Just as she's about to lose all hope, an opportunity for escape presents itself. On a hunting trip, North discovers an injured mermaid with peculiar markings that seem to resemble an eye. When the two touch, North's soul becomes forever entwined with an ancient sea spirit named Curlew.
Curlew's magic could be the key to her freedom. However, many want him gone and that means killing North.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.