USGS geophysicist, Mac Atwood, and volcanologist, Taylor Reed, survived being swallowed by the Earth during the earthquake swarm. They returned to the ordinarily peaceful and serene environs surrounding Mammoth Mountain and the Long Valley Caldera. When a series of seemingly minor earthquakes take place in the Sierra Nevadas, Mac the seismic detective, expresses his concern to Taylor. Her skills as a volcanologist will be tested as it appears the Long Valley Caldera, the second largest supervolcano in the U.S. behind Yellowstone, is awakening.

Akart's standalone novel, ARkStorm, is based on actual events. In 1861, a 43-day series of atmospheric rivers, huge flows of moisture carried from the tropics to the West Coast, turned large swaths of California into an inland sea. The intense rainstorms pounded the state unabated with little respite. Rivers became raging torrents that swept away entire communities, killing thousands. The State’s Central Valley turned a massive body of water 300-miles long and 20-miles wide.

This is more than the story of nuclear conflict. It’s about the devastating effects wrought by nuclear winter. Our possible future is seen through the eyes of the Albright family. Hank Albright, a widower and proprietor of the Driftwood Key Inn, is the epitome of the laid-back islander inhabiting the Keys. His brother, Mike, is a homicide detective for the Monroe County Sheriff’s department. Along with his wife, Jessica, a paramedic and member of the sheriff’s department's water emergency team, they become involved in the investigation of a sadistic serial killer.

Consumed by guilt over the accidental death of his daughter’s husband and child, a disabled veteran, John Sheridan leaves Florida and returns to his small town in the Black Hills of South Dakota to finalize the sale of a remote mountain cabin once shared with his wife. With his vision failing, he now believes this will be the last time he will see it and get to enjoy the biggest motorcycle rally in the world. But when a dirty-looking local teenage girl seeking safety breaks in and the power goes out, he learns a disturbing story and must decide whose survival matters more.

Erin is a documentary filmmaker on the brink of a professional breakthrough, Mark a handsome investment banker with big plans. Passionately in love, they embark on a dream honeymoon to the tropical island of Bora Bora, where they enjoy the sun, the sand, and each other. Then, while scuba diving in the crystal blue sea, they find something in the water....

When a forgotten journal materializes decades after Drake Ramsey's father vanished in the Amazon jungle, Drake decides to follow in his footsteps and search for the legendary treasure of the Inca empire hidden in the lost Inca city of Paititi.

What do you buy and sell when the global markets reach saturation point? The markets themselves. Thirty years from now the big players in global capitalism have moved on from commodities. The big money is in conflict investment. The corporations keep a careful watch on the wars of liberation and revolution that burn constantly around the world. They guage who the winners will be and sell them arms, intelligence, and power. In return for a slice of the action when the war is won.

In 2061 a young scientist invents a time machine to fix a tragedy in his past. But his good intentions turn catastrophic when an early test reveals something unexpected: the end of the world. A desperate plan is formed: recruit three heroes, ordinary humans capable of extraordinary things, and change the future.

At 12, Gideon Crew witnessed his father, a world-class mathematician, accused of treason and gunned down. At 24, summoned to his dying mother's bedside, Gideon learned the truth: His father was framed and deliberately slaughtered. With her last breath, she begged her son to avenge him. Now, with a new purpose in his life, Gideon crafts a one-time mission of vengeance, aimed at the perpetrator of his father's destruction. His plan is meticulous, spectacular, and successful.But from the shadows, someone is watching. A very powerful someone, who is impressed by Gideon's special skills.

Marsalis is one of a new breed...literally. Genetically engineered by the U.S. government to embody the naked aggression and primal survival skills that centuries of civilization have erased from humankind, Thirteens were intended to be the ultimate military fighting force. The project was scuttled, however, when a fearful public branded the supersoldiers dangerous mutants, dooming the Thirteens to forced exile on Earth's distant, desolate Mars colony. But Marsalis found a way to slip back.

Because within ODIN there is General Operations, which speaks for itself; ODIN 5i, which deals with intelligence gathering, and then there is ODIN 1i which deals in operations so sensitive not even the CIA can touch them. All three are run with an iron first by The Chief, a giant with a gigantic IQ. His top agent is Alex Mason, hard and cool – he's a law unto himself.

Two hundred thousand feet up, things go horribly wrong. An experimental low-orbit spaceplane breaks up on reentry, falling to earth over a trail hundreds of miles long. And in its wake is the beginning of the most important mission in the history of spaceflight.

Presumed dead after a staged terrorist attack, FBI Agent Odysseus Carr is running for his life with the doctor who rescued him. Meanwhile, the same power players who sent Odi to his death are now manipulating an FBI profiler into blindly tracking him down. She's not just their best - she's also his sister. As Odi unravels a devious plot of profound political manipulation and global consequence, the hunted becomes the hunter, and the real terror begins.

Kicked out of the SAS, Harry Bauer is sent home and told to be like everyone else...but he's not like everyone else... What do you do when the only skill you ever learned was how to kill, when you’re among the best of the best, but they tell you you can’t do that anymore? What do you do when they send you home from Afghanistan and tell you to get a job, like everybody else? But you’re not like everybody else.

Daniel Byrne is an investigator for the Vatican’s secretive Office of the Devil’s Advocate - the department that scrutinizes miracle claims. Over 10 years and 721 cases, not one miracle he tested has proved true. But case #722 is different; Daniel’s estranged uncle, a crooked TV evangelist, has started speaking in tongues - and accurately predicting the future. Daniel knows Reverend Tim Trinity is a con man. Could Trinity also be something more? The evangelist himself is baffled by his newfound power.