Best-selling author of My Best Friend's Girl, The Ice Cream Girls and The Brighton Mermaid


Hello and welcome to my website! My name is Dorothy and I’m an award-winning novelist. I’m lots of other things, too, but I’m guessing you’re here for the book-related stuff. Feel free to have a look around. I hope you like what you see. And do get in touch – I love to hear from you.

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Dorothy Says

All the latest news from my world

The Television Advert! Hello! I am SO EXCITED to present the TELEVISION advert for #AllMyLiesAreTrue! 🎉🎉🎉 It is SO GOOD!! It’s voiced by Maria Gbeleyi, who is Verity from the audiobook, and airs from tomorrow. Let me know when you see it! I love it so much… 😍🥰 x #TheHappyAuthor #AllMyLiesAreTrue #Bestseller #Television #Advert #Paperback #Bookstagram #DorothyKoomsonBook…

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It’s a cover up!   It’s a cover up… All My Lies Are True is coming out in paperback THIS THURSDAY! Did you notice we’d changed the hardback cover? Do you want to know why? Well, it goes back to that saying – don’t judge a book by its cover. We say that, but the whole of the publishing industry is based on people judging a book – then buying it – by its cover….

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My Books

Read your heart out

All My Lies Are True

I can’t imagine Mum’s face when I tell her. When I start to explain what I’ve done . . . and why I had to do it.

My phone starts to flash with a silent incoming call. The S.O.S I was desperate for. ‘What’s happened?’ he asks. I thought there’d be comfort in his voice but no, it makes it real, makes it terrifying.

‘He’s at my flat,’ I whisper. ‘I think I killed him.’

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Tell Me Your Secret

Ten years ago, Pieta was kidnapped by a man calling himself The Blindfolder who said he wouldn’t kill her if she kept her eyes closed for 48 hours. She never told anyone what happened to her, vowing to move on with her life.

But when The Blindfolder starts hunting down his past victims, Pieta realises she may finally be forced to tell her deepest secrets to stay alive . . .

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The Brighton Mermaid

Her murder was only the beginning...

Teenagers Nell and Jude find the body of a young woman and when no one comes to claim her, she becomes known as the Brighton Mermaid. Nell is still struggling to move on when, three weeks later, Jude disappears.

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Videos and Trailers

Watch the trailer for my latest book

Here's the trailer for All My Lies Are True, the sequel to my novel, The Ice Cream Girls. Enjoy!

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