Netflix is adapting 'The Secret of Secrets,' Dan Brown's upcoming 'Robert Langdon' mystery novel. Carlton Cuse serves as showrunner.

In a spirited bidding war, Netflix has landed The Secret of Secrets, based on Dan Brown's novel, from showrunner Carlton Cuse, with a series order.

A mystery series based on Dan Brown's Robert Langdon novels is in the works at Netflix. "Netflix has greenlit a Robert Langdon series based on The Secret of Secrets by Dan Brown!" Penguin Books, Brown's publisher,