
'The very definition of a page-turner, it's suburban noir at its finest' HARRIET TYCE Do you have any idea what the people you know are capable of? Bestselling author of All My Lies Are True, Dorothy Koomson, asks how well you can really know your neighbours. Fans of Lisa Jewell and Louise Candlish will rip through the pages of this addictive new thriller. What if all your neighbours' secrets landed in a diary on your doorstep? What if the woman who gave it to you was murdered by one of the people in the diary? What if the police asked if you knew anything? Would you hand over the book of secrets? Or ... would you try to find out what everyone had done? I Know What You've Done is the unputdownable thriller from the Queen of the Big Reveal. Readers love Dorothy 'Koomson just gets better and better' Woman & Home 'An instantly involving psychological thriller' Daily Telegraph 'This is devastatingly good' Heat 'The suspense was on another level' Black Girls Book Club 'Written with verve and insight' Stylist 'We just couldn't put it down' Closer 'The author plays a blinder' Sun 'The novel simmers with tension' Daily Express 'You'll be gripped by this tense, twisty thriller' Fabulous
Author

Hello, my name's Dorothy Koomson and I'll try to make this bit that's all about me as interesting as possible. I wrote my first novel called There's A Thin Line Between Love And Hate when I was 13. I used to write a chapter every night then pass it around to my fellow convent school pupils every morning, and they seemed to love it. I grew up in London and then grew up again in Leeds when I went to university. I eventually returned to London to study for my masters degree and stayed put for the following years. I took up various temping jobs and eventually got my big break writing, editing and subbing for various women's magazines and national papers. Fiction and storytelling were still a HUGE passion of mine and I continued to write short stories and novels every spare moment that I got. In 2001 I had the idea for The Cupid Effect and my career as a published novelist began. And it's been fantastic. In 2006, third novel, My Best Friend's Girl was published. It was incredibly successful - selling nearly 90,000 copies within its first few weeks on sale. Six weeks later, it was selected for the Richard & Judy Summer Reads Book Club and the book went on to sell over 500,000 copies. Oh, there I go again, this is meant to be about me, not my novels. Okay, back to me. I recently spent two years living in Sydney Australia, and now I'm back in England. But I can't say for how long I'll be in the UK for because I've been well and truly bitten by the travel bug