John O’Brien Books in Order

Former special operations pilot Jack Walker struggles to protect his children after an apocalyptic disaster empties the familiar world. A savage new species hunts by night, forcing the surviving humans to fight for a place in it.

After completing a rescue halfway around the world, Jack Walker must lead his people home. Their route crosses a devastated landscape where countless corpses remain and ferocious night runners occupy the dark spaces humanity has left behind.

Jack Walker and the survivors prepare for winter while rescuing others, gathering supplies, and clearing areas of nightrunners. Their struggle becomes more dangerous as the creatures display growing intelligence and begin changing the terms of survival.

Jack Walker searches for more survivors while the night runners organize and adapt under Michael's leadership. Divisions threaten both groups, and an unexpected act within the sanctuary may put everything Jack is trying to protect at risk.

The survivors' sanctuary offers a brief pause in the night runner attacks, until Jack Walker's children disappear during an outing. His rescue mission leads toward an armed encampment, with hostile humans ahead and prowling creatures surrounding it.

Lynn's rescue brings relief to Red Team, but an unseen gunman already has them in his sights. As Harold uncovers alarming information, the survivors face a newly revealed enemy and unanswered questions about the recent abduction.

Jack Walker returns to discover that night runners breached the sanctuary and carried Lynn away. A mysterious image points him toward their leader, Sandra, forcing him to risk a possible trap to learn whether Lynn is alive.

As Greg flees a mysterious force after rescuing captives, Jack faces competing threats to the survivors' compound. At sea, Leonard searches for the scattered fleet, forcing each group to gamble on uncertain allies and dangerous choices.

Jack's survivors have won one confrontation, but a stronger threat is gathering around them. While Leonard struggles to hold his battered crew together, Michael moves to protect his own kind, bringing the rival groups closer to a decisive conflict.

These stories follow people caught in civilization's collapse as night runners emerge from humanity's ruins. Survivors face the terror of approaching darkness, improvising ways to escape creatures that turn once-familiar streets into places of relentless danger.

A second collection returns to the fall of civilization, following people whose ordinary routines are shattered by the night runners. Each story explores survival amid sudden violence, abandoned communities, and the fear that arrives with every sunset.

A military virus accidentally released in an American city transforms its victims into agents of infection. Sergeant Brown attempts to escape with other survivors as troops close in, while the authorities confront the consequences of their own weapon.

Survivors of the ARES virus search for a secure refuge while airborne infection makes every landing dangerous. As naval remnants confront failing nuclear facilities, Emily and Sergeant Brown face separate struggles to escape cities overrun by the infected.

Humanity's remaining forces fight to establish a sanctuary amid infected populations and looming technological disasters. While an island refuge remains dangerously contaminated, a frightened girl travels alone carrying something that could determine the survivors' future.

A solar storm strikes during a particle-collider experiment, unleashing a wave that transforms much of humanity. Scattered survivors, including a father and daughter, soldiers, and a submarine crew, emerge into a world populated by terrifying creatures.

As humanity descends into conflict, a spiritual war over human souls reaches a crisis. Heaven opens the seven seals and unleashes the horsemen, leaving people to face conquest, hunger, destruction, and the possibility of their own extinction.

Nuclear war and the breaking of the seals have driven humanity's remaining survivors underground. A protected valley offers another refuge, but demons move among the sanctuaries, threatening the fragile hope preserved in a dark and poisoned world.

Survivors emerge from nuclear winter to find a barren landscape and dwindling supplies. Drawn toward possible refuges, they undertake hazardous journeys while divisions grow inside a protected valley and a new darkness gathers beyond its borders.

Refugees cross a devastated country while demonic riders threaten the communities awaiting them. As captives are taken toward the gates of hell, Michael faces Lucifer's attempt to breach heaven and the uncertain purpose behind humanity's remaining struggles.