Kathryn is the bestselling author of fifteen psychological thrillers and to date she has sold over one and a half million copies of her books. Her third book, The Girl With No Past, spent over four weeks at number one in the Amazon UK chart, and her books have also reached number one in the UK Apple Books chart. Kathryn has also appeared on the Wall Street Journal's bestsellers list.

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With publishing deals in sixteen different countries, Kathryn is currently completing her sixteenth thriller, which is due to be published in March 2025.

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Kathryn's third novel, THE GIRL YOU LOST, has been optioned for TV.

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After twelve years living in London, she now lives in Guildford, Surrey, the place she grew up, with her husband and two young children.

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