NUMA director Dirk Pitt searches for the connections among newly discovered Roman artifacts, the rise of a fundamentalist movement, and the existence of a mysterious long-lost "manifest," which, if discovered again, may change the history of the world.

Unsure if he or his friend Tomlinson was the target of a recent murder attempt, Doc Ford continues investigating a near-poisoning, a plane crash, and an explosion off Sanibel Island .

"Many dangers lurk in the deep-the worst of them are human. Thirty minutes into what should have been an easy, beginner-level dive in a remote Florida lake, the rim of a cave collapses, trapping two of Doc Ford's friends. Ford himself manages to escape and quickly surfaces to find help-but that's when his troubles only begin. Two men are waiting for him on the shore, and they are not the kind of men you want to meet at any time. Murderers and ex-cons,...

When a series of unexplained deaths and international hostilities occur in the wake of a breakthrough discovery to reverse global warming, NUMA director Dirk Pitt and his children investigate a mysterious silvery mineral with links to a fabled Northwest Passage expedition.

"Dirk Pitt returns in the latest novel in the beloved New York Times bestselling series created by the "grand master of adventure" Clive Cussler"--

"Marine biologist and former government agent Doc Ford is sure he's beyond the point of being surprised by his longtime pal Tomlinson's madcap tales of his misspent youth. But he's stunned anew when avowed bachelor Tomlinson reveals that as a younger man strapped for cash, he'd unwittingly fathered multiple children via for-profit sperm bank donations. Thanks to genealogy websites, Tomlinson's now-grown offspring have tracked him down, seeking answers...