The Secret of Secrets (novel)
| Author | Dan Brown |
|---|---|
| Audio read by | Paul Michael |
| Language | English |
| Series | Robert Langdon |
Release number | 6 |
| Genre | Crime, mystery, thriller |
| Publisher | Doubleday |
Publication date | September 9, 2025 |
| Publication place | United States |
| Pages | 688 |
| ISBN | 9780385546898 |
| Preceded by | Origin |
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.
As of January 2026, the book has been featured on the New York Times' best-seller list for 17 weeks in a row.