USA Today and #1 Internationally Bestselling Thriller Author

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Karen Dionne's debut psychological suspense novel THE MARSH KING'S DAUGHTER became a #1 international bestseller and is now published in 25 languages. In addition, THE MARSH KING'S DAUGHTER was named a 2018 Michigan Notable Book, and took home the Barry and the Crimson Scribe Awards for Best Novel.

THE MARSH KING'S DAUGHTER was also chosen as one of the best books of 2017 by iBooks, Hudson Booksellers, The Milwaukee Journal Sentinel, The Irish Independent, The Florida Sun-Sentinel, Library Journal, Shelf Awareness and many other booksellers and reviewers and is soon to be a major motion picture starring Daisy Ridley (Star Wars; Murder on the Orient Express)and produced by Black Bear Pictures (The Imitation Game) and Anonymous Content (Spotlight; The Revenant) and directed by Neil Burger (Divergent; Limitless).

“Subtle, brilliant and mature . . . as good as a thriller can be.” —The New York Times Book Review


Don't miss Karen's newest novel, THE WICKED SISTER, now an international bestseller and chosen as one of Publishers Weekly's Best Books of 2020! "Psychological suspense doesn’t get any better than this unforgettable thriller."

Two generations of sisters. An unthinkable crime. A secret that could ruin a family.

"Massively thrilling and utterly unputdownable. Dionne is proving to be one of the finest suspense writers working today." —Karin Slaughter "Seductively compelling.” —Robert Dugoni "Dark, atmospheric, and beautifully written." —Wendy Walker "Chilling and captivating . . . a haunting psychological thriller." —Megan Miranda “Fresh, truly original, and utterly unpredictable." —Kate Moretti "Enthralling and terrifying. I couldn't put it down." —Joseph Finder "A terrifying thriller that will haunt you long after the last page is read.” —Liv Constantine

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© 2019 Karen Dionne