Katherine Howe's ancestors settled Essex County, Massachusetts in the 1620s, and stayed there through the twentieth century. Family members included Elizabeth Proctor, who survived the Salem witch trials, and Elizabeth Howe, who did not. Katherine Howe is completing a PhD in American and New England Studies at Boston University, which included teaching a research seminar on New England witchcraft. The idea for this novel developed while she was studying for her doctoral qualifying exams, walking her dog through the woods between Marblehead and Salem. She lives in Marblehead, Massachusetts with her husband and assorted animals.