Author Profile

Karen Dionne

Karen Dionne Karen Dionne is the USA Today and #1 internationally bestselling author of the award-winning psychological suspense novel The Marsh King’s Daughter published by G.P. Putnam’s Sons in the US and in 26 other languages, and The Wicked Sister (August 2020), also from G.P. Putnam’s Sons.

The Marsh King’s Daughter was named one of the best books of 2017 by iBooks, Hudson Booksellers, The South Florida Sun-Sentinel, The Milwaukee Journal Sentinel, The Irish Independent, Library Journal, Shelf Awareness, and many other booksellers and reviewers, and is soon to be a major motion picture starring Ben Mendelsohn and Daisy Ridley.

Both The Marsh King’s Daughter and The Wicked Sister were selected as Michigan Notable Books by the Library of Michigan. The Wicked Sister was also chosen by Publishers Weekly as one of the Best Thrillers of 2020.

Karen has been active in the writing community for over twenty years. She currently co-hosts an online authors series, The Back Room, with Hank Phillippi Ryan.

For more about Karen and her works, go to