The top-rated hit series that sold a half-million copies returns in the next season of the Extinction Cycle. Welcome to the Dark Age. Survivors thought the extinction cycle ended, but a powerful evil lurks in the shadows... Eight years ago, an engineered virus ravaged the globe, infecting and transforming humans into apex predators called Variants. Billions died, civilization collapsed, and the human race teetered on the brink of extinction.Nations banded together and heroes rose up to fight these abominations. On the front lines, Captain Reed Beckham and Master Sergeant Joe "Fitz" Fitzpatrick of Delta Force Team Ghost fought against the Variant hordes. With the aid of CDC Doctor Kate Lovato, they helped lead humanity to victory.Now, almost a decade after the end of the war, civilization has slowly clawed toward recovery. In the Allied States of America, survivors live in outposts where they have rebuilt industry, agriculture, and infrastructure. The remaining Variants are believed to be dying off under destroyed cities and the abandoned frontier.But evil and intelligent forces dwell in the shadows with the starving beasts, scheming to restart the extinction cycle and end humanity forever. And once again, Beckham, Fitz, and Kate will rise to fight them, joining forces with new heroes to try and save what's left of the world.READER NOTE: You don't have to read the first 7 books of the Extinction Cycle to jump into Book 1 of Extinction Cycle: Dark Age. This new season is a self-contained storyline. For returning readers, this book takes place after book 7, Extinction War.

The government said the Variants were dying off... That the beasts would be extinct in a matter of years... That the Allied States had returned to prosperity and freedom ... The government was dead wrong. Deep under the cities, the Variants weren't just hiding, they were breeding. While the human survivors of the Extinction Cycle built outposts and brought back industries, the monsters were building something of their own. Working with human collaborators, they constructed a vast underground organic network to control this new army and launch a blitzkrieg assault across the Allied States. After tunneling under the walls, the beasts managed to overwhelm even the most fortified outposts. Many of them fell within days, forcing the military to abandon bases and retreat. But not everyone is on the run. Team Ghost hunts a monster behind enemy lines that could change the tide of war. On the USS George Johnson, Doctor Kate Lovato and her team of scientists seek to understand and tap into the Variant network while oil tycoon S.M. Fischer and his engineers come up with a plan to help buy time for the remaining outposts. And, at Outpost Portland, Captain Reed Beckham and Master Sergeant Parker Horn investigate a frightening conspiracy involving the human collaborators. As the Variant armies surge across the Allied States, those working to stop them realize even desperate measures may not be enough to prevent the total annihilation of their country.

The ashes have fallen and the dust clears to a startling discovery.... Beyond the reach of the nuclear infernos, the masterminds survived and continue their assault on outposts across the Allied States. Timothy Temper and Sergeant Ruckley narrowly escaped one of those attacks. On the run from hostile forces, they fight to get an urgent message to command-the monsters aren't the only threat. Their human allies have a nuclear weapon. Refusing to hide underground, President Jan Ringgold heads to New York. Doctor Kate Lovato and her team are there working to infiltrate and sabotage enemy communications. To buy them time, S.M. Fischer and his engineers deploy technology to detect incoming Variant attacks. But they can't hold the monsters for much longer. Deep in enemy territory, Master Sergeant Fitzpatrick and Captain Beckham discover the terrifying truth behind the New Gods and a plan even more nefarious than eliminating the human race. This time, the future depends not just on the survival of Team Ghost, but their ability to convince new allies to join the fight before it's too late.

The thrilling adventure continues in book 4 of the Extinction Cycle: Dark Age. After devastating losses and new intel about the enemy, Central Command is running out of options to prevent the total collapse of the Allied States. A scientific breakthrough and new allies might be the only hope of saving the country, and the world.