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The Kryptos Enigma

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The Kryptos Enigma explores one of the world’s most fascinating unsolved puzzles.

Hidden at CIA headquarters stands Kryptos, a cryptographic sculpture created by artist Jim Sanborn. Carved into its metal panels are four encrypted messages. Three have been solved. The final section remains a mystery.

For decades, cryptographers, intelligence analysts, and puzzle enthusiasts around the world have tried to crack the remaining code.

This compelling mystery follows the story behind the sculpture, the clues hidden within its design, and the ongoing quest to unlock its final message.

Blending art, cryptography, and real-world intrigue, The Kryptos Enigma reveals the puzzle that continues to challenge some of the world’s sharpest minds.

Perfect for lovers of unsolved mysteries, hidden messages, and historical puzzles.

Short. Punchy. Collectible.

30 pages, Kindle Edition

Published November 12, 2024

4 people want to read

About the author

Grant Kelly

169 books8 followers

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Displaying 1 - 3 of 3 reviews
Profile Image for Wendy.
228 reviews5 followers
August 5, 2025
This 22 minute audiobook discusses Kryptos, the cryptographic sculpture that was consigned when the CIA built its headquarters in Langley, VA in 1990. Artist Kim Sandborn created this sculpture with 4 coded messages, 3 which have been solved. Kelly dives into the background of this artwork and theories behind the fourth unsolved puzzle. I had never heard this story before, so it peaked my interest in this subject. This is not a deep dive, but rather a starting point to this fascinating piece of art.

*I received an ARC of this audiobook. All opinions expressed in this review are solely my own.
Profile Image for Roger.
5,817 reviews28 followers
April 22, 2025
The Kryptos Enigma (GKP Mysteries Book 2), my third read from author Grant Kelly, an author I'd not heard of before reading The Valley of the Kings (GKP Most Haunted Places Series Book 4). An enjoyable 29-page short read. “I received a complementary Kindle copy of this book and am voluntarily leaving a review." The gifting of this book did not affect my opinion of it. I look forward to reading more from this author with The Lost Roman Legion (GKP Mysteries Book 3) next. (RIP Marley January 20, 2014 - July 24, 2018).
2,168 reviews10 followers
July 20, 2025
Audiobook: I enjoyed this article about this sculpture, which was not only a thing of beauty, but also contained four puzzles within itself, one puzzle which has not been solved yet. This was the first time I had heard of this sculpture, and this essay piqued my curiosity about it as I have been a fan of puzzles for years. I thought Digital Voice Madison G was easy to follow and easy to understand. I was given a copy of the audiobook through Spotify. I volunteered, without financial gain, to post this review which reflected my honest opinions regarding this audiobook.
Displaying 1 - 3 of 3 reviews