Chris Black has spent two decades searching for answers deep within the world’s oceans and is no stranger to the risks of undersea life. Alongside Mac Johnson, his childhood friend and former Navy SEAL, Chris has cheated death above and below the ocean’s surface more times than he can count. But nothing has prepared him for the violence he and his team encounter in their own backyard of Carmel-by-the-Sea, violence which will change the team forever.

Spain 1057: During a thunderous battle, the first King of Aragon wrestles Alexander the Great's priceless Egyptian weapon from the Moors, but finds it holds a terrifying and mysterious power. A thousand years later, gunshots and the sound of breaking glass rip through the silence. Maddy Marshall and her twin brother Will Argones, an engineer, quickly run toward the sound. Horrified, they discover a sniper's bullet has found its human target. Before the pool of blood on the living room floor is dry, the twins are sent on an arcane quest to recover Alexander's ancient weapon.

When ex-MI5 operative Joe Mason is sent to Rome to guard an elderly professor and his daughter, he thinks he’s in for an easy ride. But on their first day in the Vatican secret archives, a masked assassin gains entry, shoots Joe’s client in cold blood and steals an ancient manuscript. Giving chase, Joe can’t imagine what could lie within those pages that would make someone willing to kill. The search for answers leads Joe and his comrades in a race against time, across continents and into treacherous mountains.

In 1939, a secret airship departed Nazi Germany in the dark of night filled with some of the most influential people of its time. Its cargo: a complement of rich Jewish families carrying their most valuable possessions. One such item among them was as dangerous as it was priceless. The airship never reached its destination. In 2015, Sam Reilly, a marine biologist and wealthy son of shipping mogul James Reilly, discovers a missing clue about the lost airship, and what follows is a violent treasure hunt.

Unverified reports tell of a hidden treasure trove deep beneath the Owl Mountains in Poland. Many have tried, but all have failed to locate the legendary Nazi gold train. Jack Reilly mourns the loss of his grandmother, a Holocaust survivor, and an esteemed historian. In memory of her, the retired Delta operator tours the place of her imprisonment, the Auschwitz-Birkenau State Museum, site of the infamous Nazi concentration camp.

In 1521, the Aztec treasure, considered to be the greatest ever assembled, vanished from the capitol city of Tenochtitlan. Almost five centuries later, former Navy SEAL Logan Dodge finds a mysterious gold coin off of a secret ledge in the Florida Keys. When he learns the origin of the coin, he goes on a mission to find and secure the treasure for the people of Mexico. But he’s not the only one who’s caught the scent of gold. A notorious Mexican drug cartel known as Black Venom is right on his heels and will stop at nothing to take the treasure for themselves.

Get three bestsellers for the price of one. Backwater Bay: When a body is found floating in the mangroves of Biscayne National Park, Special Agent Kurt Hunter has his first real case. Backwater Channel: Kurt is thrown into a rift between warring environmentalists and power-hungry corporate executives all trying to advance their own agendas. Backwater Cove: When agent Hunter finds a woman washed up in Biscayne National Park the case leads him to the world of high rolling boosters and the young players who will do anything to make their mark.

Jacob Snow—elite soldier-turned-CIA agent, haunted by his tortured past—is one of the CIA’s greatest assets and is dispatched when the stakes are highest. When an ancient Egyptian relic goes missing under mysterious circumstances, Jacob knows this is no run-of-the-mill robbery: The relic holds a secret—one that could destroy everything.

It was an age of empire, an age of contrast, and an age of dramatic change - and one which would determine the destinies of nations as well as of men. Captain Philip Blackwood of the Royal Marines rejoins his ship, HMS Audacious, in August of 1850, anxious to get back into action. "Per Mare - Per Terram" is the marines' motto. In the torturous heat of Africa, where they are sent to stamp out the remaining strongholds of slavery, and later, in the bitter war of the Crimea, Philip Blackwood and his men learn to obey it without question.

A secret buried in the Antarctic. A puzzle unsolved for thousands of years. And a Brooklyn-born master gunnery sergeant who's royally pissed that he has to babysit the researchers sent to figure it all out. But when Patrick "Wic" Finnegan finally sees what the team has uncovered, he can't believe his eyes, nor is he prepared for the violence to come. Soon, the portal opens and unleashes a storm of unbridled fury upon humanity.

Coming from scandalous Florida treasure hunters and drug smugglers, Sloan McPherson is forging her own path, for herself and for her daughter, out from under her family’s shadow. An auxiliary officer for Lauderdale Shores PD, she’s the go-to diver for evidence recovery. Then Sloan finds a fresh kill floating in a canal - a woman whose murky history collides with Sloan’s. Their troubling ties are making Sloan less a potential witness than a suspect. And her colleagues aren’t the only ones following every move she makes. So is the killer.

William Gunn wants nothing more than a quiet life. After returning home from the Napoleonic wars, he accepts a position on the Duke of Devonshire’s idyllic estate. Destiny, however, intervenes when his young daughter, Sarah, falls prey to a mysterious sickness, and Gunn must strike out once more into the unknown and search for an unusual cure - the black orchid, a plant found only in the forbidding Amazon rainforest, where the last man who saw it went insane.

Jack "Rattler" Owen is a navy pilot on a combat deployment struggling with life at sea. If dealing with separation from his family, the constant grind of shipboard life, and malfunctions in the E-2C Hawkeye weren't enough, it now seems that someone is out to get him. As he tries to navigate his time on the aircraft carrier, he realizes that things are not adding up in his squadron.

In 1991, acting on a tip from a local fisherman, two scuba divers discovered a sunken German U-boat, complete with its crew of 60 men, not too far off the New Jersey coast. The divers, realizing the momentousness of their discovery, began probing the mystery. Over the next six years, they became expert and well-traveled researchers, taught themselves German, hunted for clues in Germany, and constructed theories corrective of the history books, all in an effort to identify this sunken U-boat and its crew.

Heavy caliber cannon fire rips across the harbor of a remote South Atlantic research station. Worse is to come. When Argentinian forces launch a lightning strike against the Antarctic peninsular, only a single US Navy destroyer stands between them and the country's ambition to seize the continent's rich resources for herself. The USS Cunningham is sailing into hostile waters, untested, unsupported and far from home. But as the enemy will soon discover, the Cunningham is no ordinary warship, nor her Commander any ordinary Captain...

During a trek to Loch Ness, Scotland, a young Charles Darwin encounters a mysterious and terrifying creature that provides a spark for his evolutionary theory. Almost 200 years later and across the Channel in Paris, the Eiffel Tower is under attack. Only through detective work, intuition, and a judicious application of high-tech weaponry does former Army combat engineer Tyler Locke prevent a massacre.

In 1991, acting on a tip from a local fisherman, two scuba divers discovered a sunken German U-boat, complete with its crew of 60 men, not too far off the New Jersey coast. The divers, realizing the momentousness of their discovery, began probing the mystery. Over the next six years, they became expert and well-traveled researchers, taught themselves German, hunted for clues in Germany, and constructed theories corrective of the history books, all in an effort to identify this sunken U-boat and its crew.

She wants revenge. He wants her. Blackballed from underwater archaeology after accusations of artifact trafficking, Erica Kesling has a new job and a new life on the other side of the country and is working to clear her name. She's closing in on her goal when she's distracted by a sexy, charismatic intern who makes her want something other than revenge. But Lee Scott is no intern. He's looking for the lead conspirator in an international artifact smuggling scheme, and Erica is his prime suspect.

In the summer of 1947, an unidentified object crashed in Roswell, New Mexico. There were no survivors. Now it's happened again. But this time, two creatures have emerged from the wreckage alive.

Nolan Kilkenny is a former Navy SEAL who is now pursuing his doctorate in advanced computer technology. While investigating a seemingly harmless technical problem in a complex, highly secured computer network, he becomes involved in the CIA and FBI's fierce hunt for three computer-age information pirates. The ruthless, brilliant thieves have stolen SPYDER - the CIA's ultra-secret electronic intelligence gathering project that can pry open the most heavily-guarded computer networks in existence.

Chris and Chrissy Rouse, an experienced father-and-son scuba diving team, hoped to achieve widespread recognition for their outstanding but controversial diving skills. Obsessed and ambitious, they sought to solve the secrets of a mysterious, undocumented World War II German U-boat that lay under 230 feet of water, only a half day's mission from New York Harbor. In doing so they paid the ultimate price in their quest for fame.

A minor seismic disturbance in a remote section of the Pacific causes barely a ripple of concern for Kai Tanaka, acting director of the Pacific Tsunami Warning Center in Honolulu. But when an airliner en route from LA to Sydney vanishes in the same location, Kai is the first to realize that a mysterious explosion has unleashed a series of massive waves destined to obliterate Hawaii. In just one hour, Kai will lose all he has ever known - including his wife and daughter - unless he can save them from nature's most destructive force.

One year ago, Captain Jake Mahegan led a Delta Force team into Afghanistan to capture an American traitor working for the Taliban. The mission ended in tragedy. The team was infiltrated and decimated by a bomb. An enemy prisoner was killed. Mahegan was dismissed from service - dishonored forever.

Admiral William H. McRaven is back with amazing stories of bravery and heroism from his career as a Navy SEAL and commander of America's Special Operations Forces.

In December 2001, CIA paramilitary operative Matt Garrett is mysteriously pulled from Pakistan as he closes in for the kill of Al Qaeda senior leadership and is reassigned to a low-profile mission in the Philippines. But as he sifts through the wreckage of a downed U.S. C-130 cargo plane in the tangled jungle, he finds a dead U.S. Special Forces paratrooper who is not supposed to be there. Matt is quickly thrown into a contest of wits and resiliency in the uncharted rainforests of Mindanao.

Just why do humpback whales sing? That's the question that has marine behavioral biologist Nate Quinn and his crew poking, charting, recording, and photographing very big, wet, gray marine mammals - until the extraordinary day when a whale lifts its tail into the air to display a cryptic message spelled out in foot-high letters: Bite Me.

Daniel Ash wakes after midnight to the cry of his daughter. Just a bad dream, he thinks. She's had them before. Yet he can't help but worry when she cries out again as he pads down the hallway. Stepping through her doorway, he expects to find her sitting up in bed, frightened by a nightmare. But the nightmare is his. It's real. And it's just beginning....

On a foggy July evening in 1956, the Italian cruise liner Andrea Doria, bound for New York, was struck broadside by another vessel. In eleven hours, she would sink nearly 250 feet to the murky Atlantic Ocean floor. Thanks to a daring rescue operation, only 51 of more than 1,700 people died in the tragedy. But the Andrea Doria is still taking lives. Considered the Mt. Everest of diving, the Andrea Doria is the ultimate deepwater wreck challenge.

In remote, icy Greenland, ex-Air Force General Steven Macaulay helps lead an expedition to recover a lost World War II plane. Encased in ice below is a find that will astonish the world - a perfectly-preserved Viking ship, buried for nearly a thousand years, along with the frozen corpses of nine crewmen. Assembling the foremost Viking scholars, Macaulay tasks the gorgeous Lexy Vaughan to translate the ship’s markings - until her work is cut short when her colleagues are murdered.

The first to disappear is a ski instructor in the secluded mountains of Colorado. Hours later, a pregnant woman is abducted from a crowded hospital. Two places, two incidents, a single motive. And so it begins....