Bestselling author Dan Brown will be releasing a new book titled The Secret of Secrets which will continue Angels and Demons protagonist Robert Langdon’s adventures.
Brown is best known for his popular novel The Da Vinci Code which was adapted into a movie with the same name starring Tom Hanks. This is the sixth book in the Robert Langdon series, the fifth one was released in 2017.
In the latest novel, Langdon finds himself in Prague, attending his girlfriend Katherine Solomon lecture. She is going to release a “book that contains startling discoveries about the nature of human consciousness and threatens to disrupt centuries of established belief.”
A murder during the trip leads to Katherine disappearing with her manuscript and Langdon targeted by a powerful organization. Langdon has to find Katherine before his assiliants find him or his girlfriend, looking for clues in New York and London as he races against time.
Brown’s longtime editor Jason Kaufman said that “Dan always amazes me with his masterful plotting and prescient ideas. The Secret of Secrets delivers ingeniously, unveiling a fascinating world – with twists you’ll never see coming. This is classic Dan Brown.”
Penguin House added “Dan Brown has created a new Robert Langdon thriller that will mesmerize and delight readers across the world,” added Penguin Random House Global CEO Nihar Malaviya. “The hallmarks of Dan’s books – codes, art, history, religion and cutting-edge science – are on full display alongside a propulsive plot.”
“And we find one of fiction’s greatest heroes, Robert Langdon, in love and on the run in one of the most mysterious and beautiful cities in the world,” she continued. “The Secret of Secrets is Dan’s best novel yet and this will be the biggest publishing event of 2025.”
I don’t know if I agree that this will be the biggest publishing event if 2025 and how much hype there is around Brown in 2025. But only time will tell. The novel is set to release on Sept. 9, 2025 and is available for preorder now.
Follow us on Instagram and Facebook
Discover more from Books of Brilliance
Subscribe to get the latest posts sent to your email.

We’ll see if it is is the “biggest publishing even in 2025” sounds like the same old Robert Langdon cookie cutter book. I enjoy his books so I hope not.
They all have the same formula and plot… just another money grab