Discover the No.1 Sunday Times bestselling crime thriller that will keep you hooked to the very end. *A NO.1 SUNDAY TIMES BESTSELLER* *A RICHARD AND JUDY BOOKCLUB PICK* *SHORTLISTED FOR CRIME NOVEL OF THE YEAR, IRISH INDEPENDENT* 'Impossible to put down'. Chris Whitaker 'Andrea Mara is a star.' Lee Child 'Probably the most suspenseful book I will read all year.' Liz Nugent Two children get on the train. Only one gets off... No one saw it happen. 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. Everyone is lying. 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. Someone is to blame. Has your other daughter got lost? Been taken by a passing stranger? Or perhaps the culprit is closer to home than you think… Don't miss Andrea Mara's unputdownable new novel, It Should Have Been You, available now! Everyone is talking about No One Saw a Thing: 'I was hooked by the end of chapter one.' Jane Casey One of the most tense thrillers of the year so far.' John Marrs 'Twisting, frightening and impossible to put down.' Chris Whitaker 'I devoured it.' Fiona Cummins 'You will look hard to find a more searing opening 15 pages of a thriller this year.' Irish Independent 'This sharply observed novel manages to be at once an intricate puzzle and an involving race against time' The Sunday Times 'A roller coaster ride of a read where the twists are relentless right up until the very end. Brilliantly done!' * * * * * Reader review 'A fast-paced, gripping thriller that I devoured in one sitting' * * * * * Reader review 'Wow! Best book I've read in 2023 so far. . .I'll absolutely be reading more of Andrea Mara's books because this was BRILLIANT!' * * * * * Reader review 'This is in my opinion Andrea Mara's best book so far. She just keeps getting better and better. There's so many twists that even the twists have twists!' * * * * * Reader review 'I lost sleep not wanting to put this book down. Lots of plot twists and enough turns to keep you on the edge of your seat. Would highly recommend!' * * * * * Reader review Number 1 Sunday Times bestseller, February 2024 Richard and Judy Book Club pick, February 2024 Shortlisted for the Irish Independent Crime Novel of the Year, 2023