The series follows Sarah, a teenager staying at her family's allegedly-haunted centuries-old estate near Annapolis, Maryland. Sarah learns the women of her family possess psychometric abilities that enable them to see "echoes" of the past. The ability of a neighboring family to see premonitions of the future allows for time-bending possibilities that Sarah and her loved ones must choose either to pursue or reject. The first novel in the series, Amber House, is classified as a mystery paranormal-romance, with elements of Gothic horror, science fiction and magical realism. Kirkus categorized the second installment, Neverwas, as a supernatural dystopian thriller. The books are written by New York Times bestselling author Kelly Moore and her daughters Tucker Reed and Larkin Reed.