
Book One • Award-winning debut • "National Treasure meets Indiana Jones"

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“Fast-paced, layered mysteries that captivate from the first page.”
“Reminds me of the movie National Treasure, but better!”

Can one man change his past with the discovery of a lifetime?
"A diverting tale of an exciting, harrowing quest for a centuries-old fortune." – Kirkus Reviews
Winner of the 2025 PenCraft Book Award for Best Thriller, 2nd place in Action & Adventure at the 2024 Book Fest Awards, a Gold Book Award from Literary Titan, and the #1 Amazon New Release in Mystery/Thriller (September 2024), Echoes of Fortune: The Search for Braddock’s Lost Gold is a gripping historical thriller that takes readers on an exhilarating journey across centuries.

Jack Sullivan's obsession with finding Braddock's lost gold has cost him everything—even the love of his life. Now, luck has given him one last chance for redemption. Be transported between the heat of combat during the French & Indian War and the high-stakes hunt of today. As Major General Braddock faces his final battle, a fortune in payroll disappears. Centuries later, Jack embarks on a daring quest to uncover it—facing cryptic clues, deadly traps, and ruthless enemies.
Described as “National Treasure meets Indiana Jones,” this award-winning thriller blends rich history with relentless suspense

Join Jack Sullivan on a journey you’ll never forget. Get your copy of Echoes of Fortune today and dive into an unforgettable adventure through history, mystery, and the quest for redemption!
A captivating mix of history and action, seamlessly moving between timelines. The historical depth truly shines, and the themes of loyalty, a sense of duty, and the cost to people at the expense of ambition were profoundly felt.” – Anthony Avina ⭐⭐⭐⭐⭐
This novel offers an intriguing blend of historical war action and modern-day mystery. The story unfolds at a compelling pace, keeping the reader engaged throughout. Overall, it is a gripping and immersive page-turner. - Studio & ⭐⭐⭐⭐⭐
“This action-packed adventure is a showcase. David Leng is great, definitely one to watch.” – Matt McAvoy ⭐⭐⭐⭐⭐
4.0 Stars - Amazon Readers
4.4 Stars - GoodReads.com


I really enjoyed Echoes of Fortune! It has a great balance between historical fiction and modern-day action. The way the two stories moved seamlessly between 1750s with General Braddock and present-day treasure hunting built on each other and was incredibly captivating. I found myself rooting for Jack, Steve and Emma, and couldn’t wait to see what happens next. If you like a thriller with an unexpected ending with some historical background, you’ll really enjoy this book. Guessing what came next kept me hooked till the end. - Kevin S Ring
Reading this historical masterpiece was an absolute thrill! The story's vivid depiction of Major General Braddock’s ill-fated expedition, the relentless pursuit of the lost gold, and the details of the French & Indian War drew me in from start to finish. The author masterfully weaves together historical events with a modern-day treasure hunt. I was on the edge of my seat as Jack Sullivan and his team navigated perilous terrain and faced relentless challenges. The suspense, the rich historical backdrop, and the clever plot twists make this book an unforgettable journey through time and adventure. - Susan M.
If you loved National Treasure like I did, you’ll totally get into Echoes of Fortune. It’s got the same “find the hidden historical treasure” vibe, but with way more history and depth. I felt like I was on the adventure with Jack Sullivan, discovering and digging through the past, while just hoping not to get shot at. The historical parts about General Braddock throughout the book were so well done, it made me feel like I was back in the 1750s. It’s like if Nicolas Cage was a history professor instead of solely a treasure hunter... this book is pretty awesome! - Allie
What would you risk to uncover a secret buried for 150 years?
“A diverting adventure with historical depth… a masterclass in suspense.” — Kirkus Reviews
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From bestselling and multi–award-winning author David R. Leng comes the next pulse-pounding installment in the Echoes of Fortune series.
Shadows Over Cozumel is rated 4.9 on Goodreads.

When historian Jack Sullivan, Smithsonian curator Emma Wilson, and fellow former Navy SEAL Steve Johnson set out for a Thanksgiving dive off Cozumel, they expect warm waters and forgotten wrecks.
Instead, they uncover a Confederate ghost ship that vanished in 1865—along with a secret powerful enough to change history.
But they are not alone.
A black-hulled yacht shadows their every move.
Mercenaries track their dives.
Someone wants the truth buried forever.
From dazzling Caribbean reefs to the back alleys of Veracruz, Jack and his team are thrust into a deadly game where history isn’t past— it’s a weapon.
Some secrets don’t want to be found. And some will kill to stay buried.
Steve Berry • Clive Cussler • Dan Brown • James Rollins
Nonstop action. Historical intrigue.
A mystery that spans centuries.

“Leng’s world of sunken secrets moves fast, hits hard, and lands every shot.”
— BestThrillers.com ⭐⭐⭐⭐⭐
”Adrenaline-fueled, thrilling, and cinematic… a must-read novella that would make for an extended Netflix series.”
— Anthony Avina ⭐⭐⭐⭐⭐
“Leng’s writing is tight but vivid, the kind that keeps your pulse up and your coffee cold. His pacing is unrelenting—the story doesn’t just move, it races.”
— Literary Titan, ⭐⭐⭐⭐⭐
“Nail-biting novella of dark secrets, history, and danger in the deep.”
— Publishers Weekly / Book Life, ⭐⭐⭐⭐⭐
The South Shall Rise Again—
And Today, No One Is Ready!

After the bloodshed uncovering the legend of General Braddock’s lost gold, Jack Sullivan thought his days of unearthing dangerous secrets were behind him. But when asked to decipher a coded message hidden in a Civil War-era artifact, he unwittingly opens the door to something far bigger—and far deadlier—than he had ever imagined.
The message isn’t just a relic of the past. It’s a warning about the future.
The Knights of the Golden Circle, the shadowy organization that wanted to reshape America by fueling the Civil War and vanished into history, never truly disappeared. They’ve been waiting… watching… and now, they’re ready to rise again.
What begins as a simple historical analysis spirals into a fight for survival as Jack and his team are hunted by ruthless mercenaries, search for secret war chests, and uncover a conspiracy over a century in the making.
The KGC’s modern disciples will stop at nothing to see their vision realized—and Jack may be the only one who can stop them.
Because some secrets don’t just change history; they threaten the future.