Dan Brown's The Lost Symbol delivers fast-paced action and detailed historical references that fans of his work will appreciate. However, some readers find the plot convoluted and the character development lacking. The immersive puzzles and intriguing settings are highlights, but repetitive elements and a predictable storyline may disappoint some.

A reader who enjoys The Lost Symbol by Dan Brown is likely fascinated by fast-paced thrillers that intertwine history, symbolism, and conspiracy theories. Fans of The Da Vinci Code and Angels & Demons or those who appreciate Michael Crichton’s and James Rollins’s works will find this novel gripping and intellectually stimulating.

In Dan Brown's The Lost Symbol, symbology expert Robert Langdon is summoned to Washington, DC, by a phone call claiming to be from the assistant of his friend Peter Solomon, who later reveals to have kidnapped Peter. Langdon must solve a series of codes to uncover an ancient Masonic secret while navigating threats and riddles throughout the city. The book contains references to violence and trauma.

Mysterious / Suspenseful / Informative / Adventurous / Challenging

- Dan Brown's The Lost Symbol was originally titled The Solomon Key, keeping with the tradition of using keys as symbolic elements in his titles.
- The book was released with one of the largest first printings in the history of the publishing industry, with over five million copies.
- The Lost Symbol was adapted into a television series called Dan Brown's The Lost Symbol, which premiered in September 2021 on Peacock.

**Robert Langdon**  
A Harvard professor of art history and symbology who becomes entangled in a complex mystery involving a Masonic pyramid after being entrusted with a sealed package by his mentor, Peter Solomon.

**Katherine Solomon**  
A Noetic scientist and sister of Peter Solomon who plays a crucial role in helping Langdon solve the mystery through her scientific perspective and research into the potential of the human mind.

**Mal’akh/Andros/Zachary Solomon**  
The antagonist of the story, known for his extensive tattoos, who kidnaps Peter Solomon and seeks to unlock the secrets of a Masonic pyramid.

**Director Inoue Sato**  
The director of the Office of Security of the CIA, whose motivations are initially unclear, but ultimately seeks to protect national security while sometimes hindering Langdon's efforts.

**Peter Solomon**  
A respected scholar and Mason associated with the Smithsonian who is kidnapped, motivating Langdon to solve the mystery involving a pyramid and Masonic secrets.

Dan Brown

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Robert Langdon

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Prologue-Chapter 26

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Chapters 27-53

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Chapters 54-80

The Lost Symbol Chapters 54-80 Summary & Analysis

Chapters 81-107

The Lost Symbol Chapters 81-107 Summary & Analysis

Chapter 108-Epilogue

The Lost Symbol Chapter 108-Epilogue Summary & Analysis

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