Feyre is hunting in the woods. She is the main reason her family has survived so long, she needs to find food or they wont survive. In the woods she sees a deer and with it a wolf. When she decides to kill it and sell the fur, she has made one of her biggest mistakes - taking a life, requires a life in return. And the collector of that debt will be coming for her soon.
Celaena barely survived the competition in Throne of Glass, and is now the kings new Champion. Keeping up her end of the bargain, Celaena is faced with what the people closest to her think of her actions. An acquaintance from her days as an assassin crosses her path and with an unexpected turn in events, Celaena's world is shattered.