Mark Wandrey Books in Order

When mysterious devices appear around the world and an asteroid barrels toward Earth, disgraced astronomer Mindy Patoy is drawn to New York to find answers. What waits beyond the portal is not salvation, but invasion.

Five hundred years after Earth's destruction, teenager Minu Alma dreams of joining the Chosen and following her missing father into the frontier. Instead she finds deadly trials, alien hostility, and the first cracks in humanity's fragile place in the galaxy.

After proving herself in battle, Minu Alma is tasked with building an army and finding a Lost artifact that could change everything. Between looming war and a race against time to save a friend, her next mission is bigger than ever.

Years after her last quest, Minu Groves has been sidelined into academic life until new clues suggest her vanished father may still be alive. The hunt for answers pulls her back into deep space just as war begins to gather.

Alien streaks from the sky unleash Strain Delta, turning people into mindless predators before anyone understands the scale of the outbreak. Soldiers, civilians, and scientists all get one brutal lesson, the end begins fast.

Humanity is boxed in by hostile higher-order species, and Minu Groves refuses to leave her Rangers to die. Her rescue mission opens into a wider war where every new enemy seems to know exactly where to hurt her people.

Heir to a famous mercenary company, Jim Cartwright learns his family legacy has been wrecked before it is even his to claim. To save the Cavaliers, he has to find people, equipment, and confidence fast.

Minu Groves goes hunting for the Lost ghost fleets, hoping ancient warships can buy humanity real freedom from the Tog. But the deeper she pushes into space, the more personal and dangerous the mysteries become.

This anthology opens more corners of the Four Horsemen universe through fourteen stories about mercenaries, hunters, and survivors. Terry Mixon's contribution is the sharp and dangerous Breach of Contract.

This Four Horsemen anthology widens the universe beyond frontline mercs, with sixteen stories about guilds, aliens, politics, and survival. Mark Wandrey and Chris Kennedy edit a collection built to deepen the setting as much as the action.

Another shared-world anthology, this collection opens new corners of the Four Horsemen universe through stories of soldiers, schemers, hunters, and survivors. It is a good next stop if you want more range than the main novels can give.

Rick Culper signs on with Earth's premier spacefaring mercenary company just as someone starts setting traps for them across the galaxy. Commander Alexis Cromwell will need every bit of skill she has to get her people home alive.

Earth has fallen, the merc companies are scattered, and the Four Horsemen have to decide whether to hide or hit back. Jim, Nigel, Alexis, and Sansar are suddenly fighting for far more than contracts.

A month after Strain Delta is unleashed, scattered survivors fight through Texas, the Pacific, and a collapsing United States. The possible rescue of the president offers hope, but hope now costs lives.

This backstory collection looks at the Four Horsemen in their earlier days, showing how key companies and characters handled first contracts and first mistakes. It works as an origin layer for the wider universe.

The Omega War widens as humanity claws back from disaster and learns that survival will take more than one desperate stand. New alliances, fresh losses, and bigger military moves push the conflict into a harder phase.

Abraham Murdock thought he died with his dropship and wanted retirement even more after surviving the impossible. But old mercs do not stay out of wars for long, especially when Omega War trouble finds them first.

Jim Cartwright's search for Raknar knowledge leads him deeper into the remnants of an older war and the machines it left behind. The farther he goes, the clearer it becomes that other powers want those secrets too.

With Cartwright's Cavaliers finally on steadier ground, Jim Cartwright secures a base in the Karma system and starts chasing Raknar secrets. It is the first step in a quest that will pull him far from easy contracts and familiar ground.

This anthology heads back into the Four Horsemen universe with standalone tales about mercs, bad odds, and the kind of choices nobody makes from safety. It is more about range and flavor than one continuous plot.

This anthology uses the Lyon's Den, a legendary mercenary hangout, as the doorway to eighteen Four Horsemen stories. Terry Mixon appears here with The Heart of a Lion.

Jim and Splunk keep following the trail of the ancient Raknar, heading into older and more dangerous corners of the galaxy. Every clue promises answers, but the ruins around them suggest those answers may come at a cost.

Azah, a small female Tortantula, and her Flatar partner Sadek survive a brutal mercenary upbringing by depending on each other. Then Azah begins showing strange abilities, and powerful people decide she matters.

After a major victory, the Four Horsemen split up to liberate human colonies and look toward Earth itself. Peepo has plans of her own, and the race between liberation and annihilation tightens fast.

With New Warsaw exposed and humanity's fleet battered, the final Omega War battle arrives whether the Horsemen are ready or not. Everything the humans built now stands between them and extinction.

Young Terry Clark grows up around dolphin and orca research just in time for first contact to change everything. When alien translators unlock cetacean language, Terry's family is forced to flee Earth and defend a new home world.

Jim has a functioning Raknar and a growing list of enemies, but he still lacks the knowledge to maintain what he found. His hunt for answers takes him to the Science Guild, where buried history proves as dangerous as open warfare.

This shared-world anthology looks at life after corporate wars and nuclear ruin, when survival depends on grit, violence, and the stubborn urge to rebuild. Different stories show just how many ways a broken world can stay dangerous.

Near the end of his Raknar quest, Jim makes one last stop that turns into a fight for survival. An enemy from earlier in the journey catches up with him, and a long-forgotten ally may change his future.

Jim Cartwright leaves the safety of routine contracts behind to learn how the ancient Raknar were built and controlled. His search, shared with Splunk, becomes a dangerous bridge between old mysteries and coming wars.

After disaster shatters Depik society, thirteen stories explore how the survivors preserve memory, culture, and purpose. Terry Mixon is one of the contributors to this Four Horsemen anthology.

The war has paused, but peace has not arrived. While Alexis and Nigel chase justice on Capital and Jim tries to rebuild Earth, hidden factions, guild politics, and Section 51 push the galaxy toward a new conflict.

Civilization is gone, zombie hordes own the land, and the survivors at sea are running out of room and time. As submarines hunt the flotilla and secret agendas surface, humanity has to decide what survival is still worth.

Jim heads into the Solar System to investigate dangerous squatters on hidden asteroids while Alexis follows a lead on the Weapons Conglomerate. Their separate missions reveal just how messy the Guild Wars are becoming.

As the Guild Wars spread, the fighting moves through darker corners of the universe where covert deals and old grudges matter as much as open battles. Humanity's leaders are forced to act without ever knowing the full shape of the trap around them.

Victor Allen Thomas, an ex-soldier turned arms dealer, is sent across R'Bak to find hidden weapon caches before the Satraps do. If he fails, Murphy's stranded force may not survive long enough to become anything more than a rumor.

Trying to escape his many responsibilities, Jim Cartwright visits the surviving human colonies and finds new wars already breaking out. His journey outward becomes a fresh crisis for the Cavaliers, Splunk, and the fragile postwar balance.

Humanity refuses Dusman control just as the Science Guild decides Earth has become too dangerous to ignore. Assassination plots, sabotage, and political fractures force the Four Horsemen to fight on yet another front.

Set in the Salvage Universe, this anthology broadens the map with stories centered on alien species, odd alliances, and trouble around Harmon Tomeral's growing sphere. It is a worldbuilding book as much as an adventure one.

Taiki Sato escapes to recover memories he should never have lost, taking a resurrected Rick clone and a powerful new suit with him. The search leads back to Earth and into the buried history of humanity's place in the union.

Years after helping uplift the cetaceans on Hoarfrost, Terry Clark and his mercenary company are forced to move again. Ancient powers have noticed what they created, and this time the danger is aimed straight at them.

The Guild Wars race toward a finish as Dusman pressure grows, Synthetic Intelligences stir in the dark, and the Kahraman threat remains close. Nobody has the luxury of a small problem anymore.

Alexis Cromwell takes the Winged Hussars back into the field just as a routine mission turns into a hunt. When her children get pulled into the crisis, the job becomes personal fast.

This anthology explores the ruined legacy of the Entecean Empire through stories of militants, thieves, children, rulers, and ordinary survivors. The setting is full of old safeguards, fading power, and worlds still shaped by a dead civilization.

Oort, a young Tortantula with rare abilities, searches for the lost truth about her species and its home world. The Veetanho want her back, and every clue pulls tighter around an old lie.

After an attack nearly kills his family, Jim Cartwright takes the Cavaliers into the unexplored Fourth Arm. He expects to learn more about the Kahraman, but the deeper truth is darker and far more dangerous.

Jim's discoveries in the Fourth Arm reveal that the real threat is a cabal of Type 5 Synthetic Intelligences preparing to replace biological life. The Four Horsemen must organize a galactic defense before the invasion locks into place.

The war against the SIs reaches its final, exhausting stage as old secrets, broken systems, and sheer military force collide. By this point the Four Horsemen are fighting for the future of every biological species in the galaxy.

The alliance against the Type 5 SIs is finally ready to strike at their fortress beneath Capital Planet. There is no longer room for delay, only a direct assault and the question of who survives it.