Deep in the Nevada desert is the most secure compound in the United States: Area 51. The most chilling experiment of all time is about to begin there. The president doesn't know about it. Just a few scientists and military personnel working for Majestic-12 do, and they are about to make a very big mistake.

Many millennia ago, humans, including us, were seeded on 15 worlds by an alien race, the Airlia. We believe we evolved, but the reality is we were bred as cannon fodder for the Airlia’s interstellar war against the Swarm, a viral race whose only mission appears to be the obliteration of sentient life wherever encountered. On some worlds humans realized the truth about their origins, uncovered their hidden alien overlords, and rebelled.

A war beyond time. An enemy beyond space. A thriller beyond your wildest dreams. Three areas on the Earth's surface defy explanation: the Bermuda Triangle, the Devil's Sea of Japan, and a small region of Cambodia .Near the end of of the Vietnam War, Green Beret Eric Dane led a team of operatives deep into Cambodia and encountered a strange fog near the legendary city of Angkor Kol Ker. His entire team disappears, attacked by strange creatures out of the fog. Only Dane survives to return.

The 4th of July 1826. As Thomas Jefferson lies dying, he gives his part of his Jefferson Cipher to Edgar Allen Poe, with instructions to take the disks to West Point. In Massachusetts, John Adams entrusts his part of the Cipher to Colonel Thayer, the superintendent of the Military Academy. As Thayer rides away, Adams utters his final words: "Thomas Jefferson survives."

The most frightening weapon ever invented can be unleashed by a single person. And now, they have chosen her. On the border between Croatia and Bosnia, a killer practices his art on UN Peacekeeping troops, leaving handless bodies on display on crosses. In a trailer near Fort Bragg, a hitman targets a computer genius who has uncovered information more explosive than he could ever guess. And in an ancient, abandoned castle in Germany, a teenage girl is plunged into living hell-one that will take her into the heart of a murderous Middle Eastern plot.

In the 20th century Earth sent probes, transmissions, and welcoming messages to the stars. Unfortunately, someone noticed. The Galactics arrived with their battle fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined their vast Empire. Swearing allegiance to our distant alien overlords wasn't the only requirement for survival. We also had to have something of value to trade, something that neighboring planets would pay their hard-earned credits to buy. As most of the local worlds were too civilized to have a proper army, the only valuable service Earth could provide came in the form of soldiers....

Jake Sullivan is a licensed private eye with a seriously hardboiled attitude. He also possesses raw magical talent and the ability to make objects in his vicinity light as a feather or as heavy as depleted uranium, all with a magical thought. It's no wonder the G-men turn to Jake when they need someoneto go after a suspected killer who has been knocking off banks in a magic-enhanced crime spree.

Kyle Riggs is snatched by an alien spacecraft sometime after midnight. The ship is testing everyone it catches and murdering the weak. The good news is that Kyle keeps passing tests and staying alive. The bad news is the aliens who sent this ship are the nicest ones out there.

Peter Novak, one of the world's greatest men, has been kidnapped! Running out of time and hope, Novak's people turn to Paul Janson, legendary covert operative and assassin. Janson is retired, and nothing could lure him back - nothing except Peter Novak, who once saved Janson's life. " Ludlum's best since The Bourne Identity," raves Kirkus Reviews.

On June 30, 1908, an object fell from the sky, releasing more energy than a thousand Hiroshima bombs. A Siberian forest was flattened, but the strike left no significant crater. The anomaly came to be known as the Tunguska Event, and scientists have never agreed whether it was the largest meteor strike in recorded history - or something else. Alien artifacts have been uncovered since the 1908 event, and a new star drive is discovered.

Benjamin Carter Mason died last night. Maybe he threw himself off a bridge into Los Angeles Harbor, or maybe he burned to death in a house fire in San Pedro; it doesn't really matter. Today, Mason's starting a new life. He's back in boot camp, training for the only war left that matters a damn.

Halfway through SEAL training, Cadet Jack Walker, still green but showing incredible promise, is whisked away to join four SEALs and their dog for a special-ops mission. Walker soon finds himself in a whirlwind of otherworldly creatures and events as he discovers the true nature of SEAL Team 666. Battling demons, possessed humans, mass-murdering cults, and evil in its darkest and most and ancient form, the members of SEAL Team 666 have their work cut out for them. And it’s not long before they realize that the threat isn’t directed against the US alone....

Covert government operative Danielle Laidlaw leads an expedition into the deepest reaches of the Amazon in search of a legendary Mayan city. Assisted by a renowned university professor and protected by a mercenary named Hawker, her team journeys into the tangled rain forest - unaware that they are replacements for a group that vanished weeks before, and that the treasure they are seeking is no mere artifact but a breakthrough discovery that could transform the world.

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.

I Am Number Four: The Lost Files: Secret Histories is the second collection of action-packed novellas from Pittacus Lore. Initially published separately as digital originals, these three stories are now together in one volume.