Sneaking an underwater look at a notorious Russian black marketeer's fancy yacht, Doc Ford emerges to discover that the marketeer's private island has been taken over by environmental extremists who threaten to kill a hostage every hour until their demands are met.

Thirty minutes into what should have been a beginner-level dive in a remote Florida lake, the rim of a cave collapses, trapping two of Doc Ford's friends. Ford escapes and surfaces to find help... but that's when his troubles only begin. The two men waiting for him on the shore are murderers and ex-cons, intent on uncovering the remains of a legendary plane wreck supposedly loaded with Cuban treasury gold.

"Leah is changed. Months earlier, she left for a routine expedition, only this time her submarine sank to the sea floor. When she finally surfaces and returns home, her wife Miri knows that something is wrong. Barely eating and lost in her thoughts, Leah rotates between rooms in their apartment, running the taps morning and night. As Miri searches for answers, desperate to understand what happened below the water, she must face the possibility that...

In his first adventure since the revelation that he’s a parent, Dirk Pitt must uncover the truth behind the myth of another long-lost father-figure, Homer’s Odysseus, if he’s going to stop a dangerous cult from reshaping the earth in their own image.
 
Fraternal twins, Summer Pitt and Dirk Pitt, Jr., are working to determine the origin of a strange brown tide infesting the ocean off the shore of Nicaragua when...

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

The abduction of Doc Ford's son pulls the former assassin back into business--and into the trap of an avenging politico with a twisted and violent plan of revenge.

As coordinated attacks by animals against humans increase and escalate, young biologist Jackson Oz and ecologist Chloe Tousignant warn world leaders that soon there will be nowhere left for humans.

Winter in New York City: Doc Ford is at the Explorers Club. He foils an abduction attempt on a senator, but the companion in her car is snatched-- and buried alive, leading to a series of remakable twists and revelations.

"Inti Flynn arrives in Scotland with her twin sister, Aggie, to lead a team of biologists tasked with reintroducing fourteen gray wolves into the remote Highlands. She hopes to heal not only the dying landscape, but Aggie, too, unmade by the terrible secrets that drove the sisters out of Alaska. Inti is not the woman she once was, either, changed by the harm she's witnessed--inflicted by humans on both the wild and each other. Yet as the wolves surprise...

Reed is an engineer at a uranium-enrichment plant. Despite his father's tragic death at the plant, Reed stays on, proud of his work. As for radioactive incidents he's endured, Reed prefers to think about other things. His casual attitude toward danger infuriates his girlfriend, Julia, a biologist. So when news reports evidence of radioactive pollution at the plant, Reed and Julia face an unprecedented challenge.