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American Echo: Chronicles of the Cryptologist Series
For over two centuries, the Custodes Veritatis—a secret society older than the Republic—has shaped American history from the shadows. Presidents, generals, and lawmakers have risen and fallen under their invisible hand. Until now.
When historian Ethan Caldwell uncovers a cryptic message in the journals of Edward Hamilton, he and Mia Hamilton—Edward’s last living relative—are thrust into a conspiracy stretching back to the birth of the nation. Alongside Adler, a gifted cryptographer, they unravel coded journals, hidden chambers, and the lost writings of Dr. Benjamin Church, revealing that America’s true revolution was fought not just on battlefields, but in the shadows.
Their discovery collides with Quentin Vale, a former covert operative, and Orchid, a ghost from his past. Together they unearth a chilling the Custodes Veritatis never died. They are still here, still pulling the strings—and their latest creation sits in the Oval Office.
Pursued through archives and city streets, the trio races to expose a secret that could topple the government and rewrite history itself. From the hidden vaults beneath Carpenter’s Hall to the tunnels under Washington D.C., American Echo is a gripping historical thriller about power, sacrifice, and the cost of truth. Some secrets were never meant to see the light.
When historian Ethan Caldwell uncovers a cryptic message in the journals of Edward Hamilton, he and Mia Hamilton—Edward’s last living relative—are thrust into a conspiracy stretching back to the birth of the nation. Alongside Adler, a gifted cryptographer, they unravel coded journals, hidden chambers, and the lost writings of Dr. Benjamin Church, revealing that America’s true revolution was fought not just on battlefields, but in the shadows.
Their discovery collides with Quentin Vale, a former covert operative, and Orchid, a ghost from his past. Together they unearth a chilling the Custodes Veritatis never died. They are still here, still pulling the strings—and their latest creation sits in the Oval Office.
Pursued through archives and city streets, the trio races to expose a secret that could topple the government and rewrite history itself. From the hidden vaults beneath Carpenter’s Hall to the tunnels under Washington D.C., American Echo is a gripping historical thriller about power, sacrifice, and the cost of truth. Some secrets were never meant to see the light.
Audible Audio
Published December 8, 2025
About the author
Knox Legend
3 books10 followersKnox Legend is a historical thriller author whose stories pulse with the hidden truths and shadowy secrets buried deep within the world’s past. With a Master’s degree in Business and a successful career as a magazine publisher and investment advisor, Knox brings a unique lens to the craft of storytelling—where meticulous research meets gripping narrative.
A lifelong lover of history, Knox is married to fellow author CJ Kane. Together, they share not only a passion for writing but a life rich with adventure. The couple lives full-time in a motorhome, traveling across the United States and around the globe in search of forgotten places, untold conspiracies, and the whispers of stories long buried in time. Their journeys—and their love of the past—fuel the powerful, suspense-driven narratives found in Knox’s books.
Knox is a proud father of two and grandfather of five, and when he’s not unraveling historical puzzles on the page, he’s likely chasing echoes of the past through archives, ruins, and dusty libraries worldwide.
A lifelong lover of history, Knox is married to fellow author CJ Kane. Together, they share not only a passion for writing but a life rich with adventure. The couple lives full-time in a motorhome, traveling across the United States and around the globe in search of forgotten places, untold conspiracies, and the whispers of stories long buried in time. Their journeys—and their love of the past—fuel the powerful, suspense-driven narratives found in Knox’s books.
Knox is a proud father of two and grandfather of five, and when he’s not unraveling historical puzzles on the page, he’s likely chasing echoes of the past through archives, ruins, and dusty libraries worldwide.
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