The Secret of Secrets: (Robert Langdon Book 6)

THE INSTANT NUMBER 1 SUNDAY TIMES BESTSELLER & THE MILLION-COPY SELLING, LONG-AWAITED RACE-AGAINST-TIME THRILLER TAKING OVER THE WORLD

'Left me speechless.'
'Read it in 48 hours.'
'Wow. Absolutely floored.'
'Completely addictive.'

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Accompanying celebrated academic, Katherine Solomon, to a lecture she's been invited to give in Prague, Robert Langdon's world spirals out of control when she disappears without trace from their hotel room. Far from home and out of his comfort zone, Langdon must pit his wits against forces unknown to recover the woman he loves.

But Prague is an old and dangerous place, steeped in folklore and mystery. Little can Langdon know that he is being stalked by a spectre from that dark past. He must use all of his arcane knowledge to navigate a shadow city hiding in plain sight, a city which has successfully kept its secrets for centuries and will not readily give them up...

Dan Brown returns with his first novel in more than eight years - guaranteed to have you at the edge of your seat. This time, Robert Langdon is up against a deadly conspiracy that will test him to the limits - and take him to the edge of losing everything.
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Readers can't get enough of THE SECRET OF SECRETS:

'Astonishing.'

'As I close The Secret of Secrets, it is with my head spinning... This is a page-turner until one closes the book.'

'WHAT A RIDEEEE.'

'Loved it... I have been waiting for this book for 8 years! Dan Brown, please don't make me wait 8 more.'

'One of my favourite books of 2025 and a must-read!'

'New Robert Langdon??? This was in my 2025 Bingo. Literally screaming.'

'I knew this book would meet my expectations, what I didn't know was they would surpass them beyond my wildest imagination! His best yet!'

'Very addictive and exciting.'

'Jaw-dropping, mind-bending, and one of Brown's most ambitious yet. If you love thrillers that make you think and race your pulse, this is one to add to the shelf. It is exciting, provocative, and deeply satisfying.'

'Dan Brown delivers another thrilling masterpiece! Fast-paced, intelligent, and packed with twists, this novel blends mythology, science, and suspense like only he can. Langdon's race through Prague, London, and New York is both heart-pounding and thought-provoking. A must-read for fans of smart, gripping thrillers!'

'Is this book worth reading? HELL YES!'

'I inhaled this nearly 700 pages book and couldn't wait to get to the end, because you KNOW there's a plot twist!'

Paperback / softback | 720 pages | Published July 2026