“I’m beyond excited to share that I’m co-writing my very first thriller with #1 bestselling author @harlancoben! As a massive fan of Harlan’s work, I can’t believe he agreed to co-author a novel with me. I’m either the most persuasive person alive or the idea of this book is just TOO GOOD! Maybe both?? I honestly can’t wait for you all to read it!” Witherspoon wrote on Instagram.

The title of the novel is still under wraps, but the post revealed that it would be published in autumn 2025. The book will be published in the UK by Century, a division of Penguin Random House, and is said to be based on an original idea from Witherspoon herself.

Reese Witherspoon announces a thriller novel written with Harlan Coben