A newlywed librarian begins to suspect the man she married might be a murderer--in this spectacularly twisty and deviously clever novel by Peter Swanson, New York Times bestselling author of The Kind Worth Killing and Eight Perfect Murders. Martha Ratliff conceded long ago that she'd likely spend her life alone. She was fine with it, happy with her solo existence, stimulated by her work as a librarian in Maine. But then...