#171 in Adventure
The Secret of Secrets
- 704
- Pages
- about 13 h
- Reading time
- NYT bestseller · 17 weeks on the list, peaked at #1
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Our view
“The Secret of Secrets” is Dan Brown doing exactly what he always does, which will please his regulars and surprise no one. The sixth Robert Langdon novel turns on the science of consciousness, mixing research, puzzle and philosophy at his usual pace. The familiar formula is also the main complaint: some readers notice plot turns and character types repeated from earlier books. Over seven hundred pages on well-known rails.
The view of the BookRank editors, written from readers’ ratings and comments. It does not affect the score or the book’s place in a ranking.
About the book
The Secret of Secrets is a mystery thriller novel by American author Dan Brown and the sixth installment in his Robert Langdon series, following Origin. The book was released on September 9, 2025.
Reading order · Robert Langdon series
Full order & progress →- Angels & DemonsStart here
7.47.4 / 10 - The Da Vinci Code
7.37.3 / 10 - The Lost Symbol
7.07.0 / 10 - Inferno
7.47.4 / 10 - Origin
7.37.3 / 10 - The Secret of SecretsThis book
7.27.2 / 10
Where the score comes from
The sources average 7.0 across 343 ratings — not yet many, so the reader vote carries 70% of the weight and the rest pulls toward the Adventure average of 7.8. That is how 7.2 comes out.
| Source | Average | Ratings | Weight |
|---|---|---|---|
| Open Library | 8.8 | 5 | 2% |
| Hardcover | 7.0 | 338 | 99% |
Frequently asked
How long is The Secret of Secrets?
It has 704 pages — longer than 99% of the ranked books in Adventure.
In this book
Themes this book shares with others — each leads to the best books on it.
If you liked this
Same shelf — Adventure — with scores between 7.0 and 7.4, closest to this book.
