The Recurring Cast
Robert Langdon book 6 · 2025

The Secret of Secrets

Robert Langdon is in Prague with his friend Katherine Solomon, a scientist who is about to publish a ground-breaking book on human consciousness, when she disappears.

Spoiler-free summary written for The Recurring Cast.

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Book facts

Author
Dan Brown
Series
Robert Langdon, book 6 of 6
Published
2025
Setting
Set in Prague
Characters charted
2
Chart confidence
High

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Who is in The Secret of Secrets

2 recurring or key characters from Dan Brown’s chart.

Lead 1

Major 1

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