In this fantasy romance, a human woman named Elias Thorne enters the dangerous Fae realm to kill the Shifter Prince, Kaelen, who she believes is responsible for her sister's death. However, she soon discovers that the truth behind her sister's fate is far more complex, forcing her to form an uneasy alliance with the prince she intended to slay. As they navigate political intrigue and deadly trials, Elias must confront her own prejudices and the growing attraction between them.