Julian Sancton’s follow-up to his thrilling, acclaimed debut, Madhouse at the End of the Earth, is the riveting story of a legendary Spanish galleon that sunk off the coast of Columbia in 1708 with over a billion dollars in gold and silver—and one man’s obsessive quest to find and excavate it.
NEPTUNE’S RANSOM
by Julian Sancton
Crown, January 2026
Roger Dooley wasn’t looking for the San Jose—he was looking for the galleon Mercedes. But an accidental discovery in the dusty stacks of a Spanish archive led him to the story of a lifetime—the journey of a ship that had gathered a mountain of plundered riches from the New World for a long-awaited delivery to the King of Spain. But that ship, the San Jose, never reached Spanish shores. Somewhere miles off Cartegena, the Spanish armada was drawn into a pitched battle with British ships of war. When the smoke cleared, the San Jose had disappeared into the ocean, its precise location unknown and its decaying hull shrouded in darkness beyond the reach of divers.
Dooley was at once an unlikely candidate to find it, but also a singular figure. Half Cuban by birth, his life stretched from the ballfields of Brooklyn to the shores of Castro’s Havana at the dawn of revolution, where he would help birth a fledgling nation’s diving program and make films with the likes of Jacques Cousteau before finding himself placed on an international watch list and barred from the United States. With academic training cobbled together across various disciplines, Dooley was no one’s idea of a credentialed academic, and yet his tenacity and single-minded devotion to the science of ocean archeology—and to finding the San Jose—led him to breakthroughs thought impossible, as he jousted with famous treasure hunters and well-funded competitors and ultimately homed in on a patch of sea that might contain a three hundred year old shipwreck—or nothing at all.
Like The Orchid Thief, NEPTUNE’S RANSOM plunges into a rarified world through the eyes of an idiosyncratic protagonist, one whose work would spark the hopes of presidents and make real the dreams of a nation. In this tale of temerity and treasure, Julian Sancton blends the adventure of Indiana Jones with the international intrigue of XXX into a one-of-a-kind story of a lost fortune and a decades-long quest to shine light on the bounty of gold and silver at the bottom of the sea.
Julian Sancton is a senior features editor at Departures magazine, where he writes about culture and travel. His work has appeared in Vanity Fair, Esquire, The New Yorker, Wired, and Playboy, among others. He has reported from every continent including Antarctica, which he first visited while researching this book.
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