From a Wall Street Journal story by Jeffrey A. Trachtenberg headlined “James Patterson to Complete Unfinished Michael Crichton Book”:

Author James Patterson says he has always been a fan of the late thriller writer Michael Crichton. Now he is going to finish writing one of Mr. Crichton’s books.

The untitled novel, based on a partially finished manuscript provided by Mr. Crichton’s estate, is expected to be published in 2024 by Little, Brown & Co., an imprint of Lagardère Hachette Book Group.