A teenage girl is transported to another world—and another life as a powerful witch—in the international bestselling YA fantasy romance series debut.

Lily Proctor of Salem, Massachusetts, is convinced that the entire natural world is trying to kill her. Her life-threatening allergies make it increasingly difficult to live a normal life, and after a completely humiliating incident ruins her first (and perhaps only) real party, she's ready to disappear. Then Lily suddenly finds herself in a different Salem. One overrun with horrifying creatures and ruled by powerful women—including Lillian, this world's version of Lily.

What made Lily weak at home makes her extraordinary here. It also puts her in terrible danger. Faced with new responsibilities she can barely understand—and a love she never expected—Lily is left with one question: How can she be the savior of this world when she is literally her own worst enemy?