It started with the insects. Before society realized the danger, the Earth had inexorably begun a transformation into a place where life could not survive. A small group found shelter in the Arc, an underground refuge safe from the toxins ravaging the surface. After centuries of darkness, humanity’s second chance is running out - and Raven Wilder knows it. Her job fixing the machinery in the Arc makes her aware of how close everything is to breaking down. When her six-year-old begins showing signs of oxygen deprivation, Raven refuses to go quietly into oblivion.

Harper Cody used to worry about the SATs or a getting a new laptop for Christmas...but now, she only wants to keep her little sister alive. At 5:59 a.m. early in September, life as she knew it came to an end with a nuclear flash ninety miles away in Colorado Springs. For two months, her family sheltered in the basement of their home, surviving on whatever canned goods Dad could scavenge. Passing evacuees told of a safe haven in the mountains, but her father refused to leave. He thought their home was safe...until a gang of looters kicked in the door.

In 2035, in a hopelessly broken world, Nick Ritter is The Posh Prepper, a gifted crisis consultant who sells disaster-survival plans to rich and powerful clients. Haunted by corrupt clients and a tragic past, Nick lives a reclusive life in overcrowded Boston, counting the days until he can retire to his survival ranch in New Zealand. But when he gets an insider tip that a deadly virus is tearing through Boston, Nick has 24 hours to escape the city and flee to New Zealand. He has the perfect survival plan, but there’s just one problem…it doesn’t account for company.

From the safety of the Deep Hole Sanctuary, two are sent to the surface for the first time in nine years. Rumors, tales, and expectations for the world above are that they will find a desolate wasteland filled with mutated animals and bands of roving hoards of starving people.

When a killer comet hurtles toward Earth, 18-year-old Joanna Murphy is selected to wait out the apocalypse in an underground bunker. She enters cryosleep with her close-knit team, preparing to resettle the planet after the atmosphere clears in 200 years. Joanna is the only one who wakes up. Faced with a bunker full of bones and a blocked exit, Joanna must claw her way to the surface, figure out what happened to her team, and try not to panic - or die. That’s going to be tricky if she’s the only person left in the world.

In the wake of the cataclysmic events that reshaped our world in 2020, a sense of relief washed over us all. By late 2023, I think we were ready to just live life again. I know I was. It was a time to make new friends and put the past to rest. Rayne and I hadn’t known each other long, but we were building a solid friendship, nothing more. It was our common interests that sent us on vacation together to my remote cabin. What we didn’t, couldn’t know, was that we were on a collision course with the end of the world as we knew it.

In the wake of a summer storm, a strange malady takes hold, slowing mental and physical response. For many exposed, it proves fatal. As scientists race to find a cure for the unexplainable, it spreads.

Fourteen-year-old Greg Dixon is living a nightmare. Attending boarding school outside of Boston, he is separated from his family when a pandemic strikes. His classmates and teachers are dead, rotting in a dormitory-turned-morgue steps from his room. The nights are getting colder, and his food has run out. The last message from his father is to get away from the city and to meet at his grandparents' town in remote New Hampshire.

In the middle of the night, in a house on a quiet street in suburban Minneapolis, intruders silently murder Luke Ellis' parents and load him into a black SUV. The operation takes less than two minutes. Luke will wake up at The Institute, in a room that looks just like his own, except there's no window. And outside his door are other doors, behind which are other kids with special talents - telekinesis and telepathy - who got to this place the same way Luke did: Kalisha, Nick, George, Iris, and 10-year-old Avery Dixon.

At the end of the world. Nick Peterson never expected to be stuck with a bunch of kids. A 17-year-old boy shouldn’t be responsible for keeping other people alive. But he didn’t have much choice in the matter. That’s what happens when everyone else dies.

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.

Divorced. Broke. Living with a pack of elderly roommates. And those hallucinations she’s diligently ignoring? Her tarot card-dealing mom is convinced they’re clairvoyant visions. Just when things can’t get worse, a so-hot-it-should-be-illegal private investigator shows up on her doorstep looking for a neighbor...who turns up murdered.

Young parents Ethan and Brooke Spencer are on a romantic ski vacation in the Rockies when the lights go out, cars stall, and communications fail. Stranded 800 miles from home, they are desperate to return to their four-year-old twins and are willing to do whatever it takes to reach them.

Sixteen-year-old Jack Moreno is managing to hold his life together. Barely. After a terrible car accident leaves his father unable to work, Jack makes ends meet by dropping out of school and covering his dad’s custodial shifts at a school for troubled teens, high in the Wasatch Mountains. Everything is going all right until the night Jack finds Sarah Watson—yes, descendant of that Watson—dead.

Back from his final deployment with the US Marines, Alan Carson is hiking across New Mexico’s Gila Wilderness to ponder his future and put the war in his past. When his best friend and squad leader, Sergeant Kurt Timms, took a Taliban bullet because of bad intel, Alan made a promise to his dying friend. He would come here to see the rugged mountains that were Kurt’s boyhood stomping grounds. But deep in a trackless canyon, miles from any trail, Alan finds something else: the body of a dead man at the foot of a cliff, an ancient cave…and a passageway too intriguing to ignore.