Dan Brown's new book is out now, and it's great news for fans of his Robert Langdon series. It's been eight years since the last installment in the series (Origin), which is the longest break between books Brown has had since he first published Angels and Demons back in the early 2000s. The new novel, titled Secret of Secrets, is available to buy at every major online bookstore at a discount and both the Kindle and audiobook versions are now live at Amazon.
Where to Buy The Secret of Secrets
Releases September 9
The Secret of Secrets
The audiobook will release at the same time.
For those who haven't read the books, you'll likely recognize the name Robert Langdon from Tom Hanks' portrayal of the character in the hit film adaptation of The Da Vinci Code. Hanks also played the character in two more follow-up films based on the novels, Angels & Demons and Inferno. The most recent interpretation of the character was by Ashley Zukerman, who played the titular Symbology professor in 2021's The Lost Symbol TV series (before it was cancelled at Peacock).
Despite a lack of news about Dan Brown's previous Robert Langdon novel receiving any sort of adaptation, Netflix announced in May that The Secret of Secrets will be getting a new TV series. The new take on the iconic series will be led by showrunner Carlton Cuse, who is known for his work on popular shows like Lost, Bates Motel, and The Strain. An actor has yet to be chosen for the role of Robert Langdon and a release date has yet to be announced.
Robert Langdon Series Reading Order
The Secret of Secrets will be the sixth book in the series after Origin which was released back in 2017. The best order to read them in is by publish date:
- Angels & Demons (2000)
- The Da Vinci Code (2003)
- The Lost Symbol (2009)
- Inferno (2013)
- Origin (2017)
- The Secret of Secrets (2025)
Kindle Edition and Audiobook Release Dates
Alongside the hardcover edition of the book, the Kindle and Audiobook versions of the book are now available as well. For those with Kindle Unlimited, it unfortunately looks like the new book will not be included for free with your subscription. In fact, none of the books in Dan Brown's Robert Langdon series are included in Kindle Unlimited. You can buy The Secret of Secrets ebook for $15.99 right now.
For those with an Audible subscription, you will be able to use your monthly credit to purchase the audiobook or you can choose to buy outright for $25.99. You can also opt for a free trial of the service to get this first audiobook for free. It's narrated by Paul Mitchell, who has been the voice of all of the previous books in the series.
Looking for more things to read this month? Check out our guide to the biggest new book releases of September for more top picks.
