Our thriller columnist weighs in on Peter Swanson’s “Every Vow You Break” and two other thoroughly unsettling new novels.Our thriller columnist weighs in on Peter Swanson’s “Every Vow You Break” and two other thoroughly unsettling new novels.Read MoreBooks and Literature, Mirrorland (Book), Swanson, Peter (1968- ), Johnstone, Carole, Berry, Flynn (Author), Northern Spy (Book), Every Vow You Break (Book)