In her hometown of Salem Lily Proctor endures not only life-threatening allergies but humiliation at her first high school party with her best friend and longtime crush, Tristan. But in a different Salem -- one overrun with horrifying creatures and ruled by powerful women called Crucibles, she is Lillian, the strongest and cruelest Crucible ... Lily's other self in an alternate universe that Lily suddenly finds herself where she is torn between responsibilities...

Lily Proctor has come a long way from the weak, sickly girl she used to be. She has gained power as a witch and a leader, found her way home, and has chosen to face battle again. And after her recent losses and betrayal, she has learned more about grief than she ever wanted to know. Thrust once again into a strange society, Lily is determined to find a way to defeat the monstrous Woven without resorting to nuclear weapons or becoming a tyrannical...