A tense psychological thriller about a mother who must keep watch at all times if she wants to keep her family safe—from USA TODAY and #1 national bestselling

#1 NATIONAL BESTSELLER A moment on the subway platform changes two women’s lives forever—a debut thriller that will take your breath away. A total stranger

***THE TIMES TOP TEN BESTSELLER*** 'A dazzling psychological thriller' Sunday Times 'Deliciously sinister and obsessive ... with one hell of a twist' Observer '

Sarah Goldman had never been one to trust very easily. She kept a close eye on the babysitter, Holly,maybe too close at times. What she saw raised some question

NEW YORK TIMES BESTSELLER • The disappearance of a beautiful, charismatic mother leaves her family to piece together her secrets in this propulsive novel for