When the National Security Agency’s invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician. What she uncovers sends shock waves through the corridors of power. The NSA is being held hostage…not by guns or bombs but by a code so complex that if released would cripple U.S. intelligence. Caught in an accelerating tempest of secrecy and lies, Fletcher battles to save the agency she believes in.

In Level Five, the debut near-future thriller by Nebula Award winner William Ledbetter, AIs battle for dominance, and nanotechnology is on the loose. And all that stands in the way of the coming apocalypse is a starry-eyed inventor who dreams of building a revolutionary new spacecraft and an intelligence agency desk jockey faced with the impossible choice of saving her daughter - or saving the world.

In her career as an Army intelligence officer, Amy Cornwall has seen haunting sights half a world away. None compare to the chilling scene at her Virginia home. It is empty. A phone rings with a terrifying ultimatum: locate and liberate an unnamed captive in 48 hours, or her kidnapped husband and 10-year-old daughter are dead. Now, and in open defiance of Army Command, Amy must employ every lethal tactic she has to save them. To succeed, she must discover not only who dispatched her on this mission, but why. Without her family, she's dead anyway.

1944. Physics professor Alfred Mendel and his family were trying to flee Paris when they were caught and forced onto a train, along with thousands of other Jewish families. At the other end of the long, torturous train ride, Alfred is separated from his family and sent to the men’s camp, where all of his belongings are tossed on a roaring fire. His books, his papers, his life’s work. The Nazis have no idea what they have just destroyed. And without that physical record, Alfred is one of only two people in the world with his particular knowledge. Knowledge that could start a war, or end it.

Deep in the Afghan mountains, Sergeant Michael Pitcher discovers an object with powers that defy explanation. After interacting with it, he suffers a traumatic seizure and is flown home for evaluation. Cleared by the doctors, Michael goes home to his relieved wife, Josie. But he’s a changed man. The once-loving husband is now coldly withdrawn. When a team of scientists connected to Sergeant Pitcher vanishes without a trace, CIA agent Dean Ninemeyer comes to him for insight - only to find that the recovering soldier has also disappeared.

The scope and reality of this final volume in the Bearth Trilogy is happening around you right now in the daily news. The wars, the religious genocide, the economic and political corruption are all real. The story is true. The cataclysms are possible. The places are real. None of the names have been changed, because they are all guilty. Only the characters of the story are created to carry you through the events at the ground level. When you finish this final volume of the trilogy, you will never look at life or death the same again. Are you ready for the change?

A terrorist bomb explodes during a South Korean celebration of the anniversary of the election of its first president. Alarms are raised in Washington. No one is claiming responsibility. The first suspect is North Korea. Could it be making a power play against South Korea and unification? If so, how will the U.S. respond? Paul Hood, Director of the Op-Center, must answer these questions. The Op-Center, a largely autonomous new agency which takes on the government's toughest security problems, is only six months old, and has never been given a foreign crisis until now.

In 48 hours, the Earth will be hit by a coronal mass ejection (CME) from the sun, a "Carrington Event" that has the power to shut down and possibly destroy the world's electrical infrastructure. To try and prevent permanent damage, everything goes dark prior to the hit: Global communications are shut down; hospital emergency generators are disconnected; the entire internet, media broadcasting, and cell phone systems are turned off. Will the world's population successfully defend itself in the wake of the CME, or will mass panic lead to the breakdown of society as we know it?

EMASI! Each Man a Separate Individual! That is the rallying cry of the Seps, the resistance force engaged in a class war against the upper tiers of a society driven entirely by opinion polls. Those who score high, the High-Opps, are given plush apartments, comfortable jobs, every possible convenience. But those who happen to be low-opped live crowded in warrens, facing harsh lives and brutal conditions.

My name is Gemma Keyes. Other than my name, I am utterly forgettable - so those who never paid much attention to me in the first place haven't exactly noticed that I've disappeared. Vanished. Oh, it's much more complicated than it sounds. And let me tell you, invisibility comes with its own set of problems.

Dalton Andrews has seen it all. After spending a little over 10 years with the Denver PD, he’d had enough and joined Wildlife Services, not expecting it to be such an isolating career. When his job takes him on assignment to Crooked Bend, he jumps at the chance to work with actual people again when the town’s sheriff needs to hire a few more deputies. While at his new boss’ wedding reception, he unexpectedly meets blue-eyed architect Colin McKenzie that makes his brain go fuzzy.

After container ships carrying black-market nuclear bombs are detonated in American port cities, millions are killed and the country is thrown into panic. In Greenwood, Nebraska, Paul Edwards learns about the devastating terrorist attacks on the news. As the power grid goes down, his fear is magnified by the knowledge that his wife and daughter are a thousand miles away in Atlanta. When his prepper father-in-law, Buck, insists on being part of the rescue, things go from bad to worse. Paul and Buck have hated each other for years.

For 155 days, Will Foster has been locked in medical quarantine without his consent. The doctors claim he is infected with a deadly virus, but this is a lie. Encoded in his DNA is a mutation that provides immunity from disease for all who possess it, source code that Vyrogen Pharmaceuticals aims to commercialize as a multi-billion dollar gene therapy. Against all odds, Foster escapes his laboratory prison and steals a virulent strain of bubonic plague as insurance. To help him unravel the mystery inside him, Foster contacts the only person he can trust - a former lover and microbiologist living Vienna - and the two become fugitives.

Technology and insanity combine to create a very bad week for the United States and the world. In this unputdownable thriller from breakout author Jerry Hatchett, tech celebrity Matt Decker is on top of the world until his flagship creation, the system that runs the U.S. power grid, suffers a crippling cyber attack. Chaos follows as a ruthless maniac sets out to create his own version of Revelation's battle of Armageddon. And he's making it personal as he blames Decker for the escalating disasters that stretch from New York to Israel to the "sulfurous scarps of hell."

Five years ago, the ghost hunting Supernaturals disbanded after being accused of faking their experiences at Summer House. Now, the eccentric, but brilliant, team of scientists and paranormal experts are being asked to join forces once again - this time to save the president. Through strenuous investigation and mysterious messages about returning home, the team soon discovers the long lost home of the president: a small town in California called Moreno, a modern ghost town.