<span style="">Discover the No.1 Sunday Times bestselling crime thriller that will keep you hooked to the very end.</span><br><span style=""><br></span><br><span style="">*A NO.1 SUNDAY TIMES BESTSELLER*</span><br><span style="">*A RICHARD AND JUDY BOOKCLUB PICK*</span><br><span style="">*SHORTLISTED FOR CRIME NOVEL OF THE YEAR, IRISH INDEPENDENT*</span><br><span style=""><br></span><br><span style="">'Impossible to put down'. Chris Whitaker</span><br><span style="">'Andrea Mara is a star.' Lee Child</span><br><span style="">'Probably the most suspenseful book I will read all year.' Liz Nugent</span><br><span style=""><br></span><br><span style="">Two children get on the train. Only one gets off...</span><br><span style=""><br></span><br><span style="">No one saw it happen.</span><br><span style="">Your two little girls jump on the train ahead of you. As you try to join them, the doors slide shut and the train moves away, leaving you behind.</span><br><span style=""><br></span><br><span style="">Everyone is lying.</span><br><span style="">It's only when you reach the next stop that you truly begin to panic. Because there aren't two children waiting for you on the platform. There's only one.</span><br><span style=""><br></span><br><span style="">Someone is to blame.</span><br><span style="">Has your other daughter got lost? Been taken by a passing stranger?</span><br><span style="">Or perhaps the culprit is closer to home than you think…</span>