On the run and desperate for answers, Eva and her friends have fled Ternain. With them they have brought captive Isa who is chained and magicked to prevent her from making trouble. Their lives bonded after the Entwining ceremony, each sister's life is now in the other's hand. Having fled to the northern part of the Arym Plain, Eva hopes she might find her father's family and learn more of his plan to unite the country. However, the welcome she receives at her father's ancestral home puts her at death's door, and leaves more questions than answers. Without Baccha to guide and train her magick, Eva must find a way not only to survive her own metamorphosis, but to unite all the people of Myre, including her sister, before it is too late.