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The Human Chronicles Books in Order

Part ofTR Harris Books in Order

Explore The Human Chronicles books by T.R. Harris in order, with quick summaries, series background, and help choosing where to start.

Last updated: July 9, 2026

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The Human Chronicles books in publication order

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29 books

1

The Fringe Worlds

by TR Harris

2011

Abducted from Earth, ex-Navy SEAL Adam Cain wakes in an alien galaxy where humans are the physically superior species. Stranded, angry, and far from home, he teams with fringe-world operators and starts making trouble fast.

2

Alien Assassin

by TR Harris

2012

To survive in a hostile galaxy, Adam turns his superhuman edge into contract work and links up again with Riyad Tarazi. Assassins, criminals, and hidden alien manipulators make every job more dangerous than it looks.

3

The Tactics of Revenge

by TR Harris

2012

Adam and his raiders wage insurgency while the Human fleet prepares open war. As the Klin's hidden interference comes into the light, Adam is pushed toward a direct showdown with the powers behind the conflict.

4

The War of Pawns

by TR Harris

2012

Adam fights his way back toward Earth only to learn humanity has been played by the Klin. With both Juireans and Klin in the mix, personal revenge becomes a much wider war.

5

Cain's Crusaders

by TR Harris

2013

Adam takes command of a covert team used for the jobs no one else will touch. Their latest mission, rescuing the mysterious Arieel Bol, gets even worse once a fortune is placed on their heads.

6

The Apex Predator

by TR Harris

2013

Humanity's enemies answer a bounty with a devastating strike on Earth. While Adam and Sherri scramble to help defend the planet, Riyad heads into deadly territory to uncover the Kracori homeworld.

7

The Legend of Earth

by TR Harris

2013

Facing execution before the Juirean leader, Adam tries to prove humans are not the real enemy. Then the Kracori attack and turn a fragile revelation into a much larger crisis.

8

A Galaxy to Conquer

by TR Harris

2014

The Milky Way's great powers converge on Elision for a war that could wipe out whole species. Adam races into the middle of it, trying to save Riyad before the fleets finish what they started.

9

The Masters of War

by TR Harris

2014

Chasing Nigel McCarthy into another galaxy, Adam loses his ship and walks into a new struggle for power. Old enemies, stolen technology, and cross-galactic war turn the hunt into something much bigger.

10

Prelude to War

by TR Harris

2015

Adam, Riyad, and Sherri run straight into a mutant mastermind and an invading horde from another universe. Even old enemies must unite as the Milky Way realizes it has only seen the opening move.

11

The Unreachable Stars

by TR Harris

2015

When Panur seeks refuge with Adam, the entire galaxy is offered safety in exchange for handing him over. Adam refuses, then spends the book outrunning governments, fleets, and anyone willing to cash in.

12

A Clash of Aliens

by TR Harris

2016

With Adam trapped in the Sol-Kor universe, Riyad tries to find Panur and mount an impossible rescue. Alliances shift, enemies interfere, and Adam searches for his own way out before the cost gets even higher.

13

Alien Games

by TR Harris

2016

Peace does not last. New invaders from Andromeda and an ancient hidden power force Adam's team into a deadly contest over which species gets to survive.

14

Battlelines

by TR Harris

2016

The war inside the Sol-Kor universe finally erupts, and Adam's team must stop J'nae from mass-producing trans-dimensional warships. Giant fleet battles rage while Adam fights to keep the enemy from turning one victory into total domination.

15

Scorched Earth

by TR Harris

2016

Adam has been pushed past patience and into all-out retaliation. What follows is a bruising revenge campaign full of hard fights, political fallout, and the sense that victory may cost more than anyone wants to pay.

16

The Copernicus Deception

by TR Harris

2016

A trip to help friends on Visidor unravels into a corporate conspiracy with galactic consequences. Adam, Riyad, Sherri, and the slippery Copernicus Smith chase a secret that could restart war on a far worse scale.

17

When Earth Reigned Supreme

by TR Harris

2016

Given a chance to end the Sol-Kor war at its source, Adam and Riyad cross into another universe to kill the queen. It is a desperate mission with no easy way home and failure measured in trillions of lives.

18

Force of Gravity

by TR Harris

2017

As the Klin keep rolling forward, Adam turns to Panur and Lila for a way to stop them. Enemy fleets are only part of the problem, because frightened politicians may be just as dangerous.

19

Invasion Force

by TR Harris

2017

The Klin return in the open with killer robots, unstoppable warships, and a plan to finish the galaxy for good. Adam is one of the few people who knows how dangerous they really are, and that makes him both target and hope.

20

Last Species Standing

by TR Harris

2017

After the destruction of Nuor, Adam and his teammates go from heroes to the most hunted people in the galaxy. With bounties everywhere, they strike back at the aliens funding the contract on their lives.

21

The Andromeda Mission

by TR Harris

2017

Adam and his crew make a one-way run to Andromeda to cut off the Nuorean threat at its source. It is a long-shot mission into unknown territory, with Earth and the Milky Way riding on the outcome.

22

The Cain Legacy

by TR Harris

2017

While Lila is taken by beings older and smarter than any current empire, Andromedan pressure keeps building across the galaxy. Adam's friends hunt for answers as the story opens new questions about humanity's deepest origins.

23

Mission Critical

by TR Harris

2018

Short on money and peace, Adam takes a job that sounds impossible even by his standards. Two close friends have stolen the deadliest weapon in the galaxy, and he has to catch them before everyone else does.

24

The Immortal War

by TR Harris

2018

Kracion is closing in on godlike power, and Adam has to beat him to the lost Aris world that may decide everything. Massive fleet action and a personal race against time drive this chapter of the war.

25

The Lost Universe

by TR Harris

2018

A paid rescue mission in another universe promises huge rewards and almost no straight answers. Adam soon learns the job is bigger, stranger, and far more dangerous than the people who hired him admitted.

26

Destroyer of Worlds

by TR Harris

2019

Kracion is back, turning whole worlds into rubble, and Adam Cain is caught in a brutal chess match between ancient superpowers. Massive fleet battles and desperate gambits push the galaxy toward ruin.

27

Phantoms

by TR Harris

2019

What starts as a quick rescue on dangerous Sasin becomes the opening move in Adam Cain's strangest war yet. Ancient enemies stir, phantom forces surface, and Adam and Summer discover unsettling new powers.

28

Terminus Rising

by TR Harris

2019

With Te'moc closing in and the universe itself under strain, Adam's team races to stop a disaster no one fully understands. At the same time, long-buried truths about Panur, the Aris, and the Sol-Kor finally come to light.

29

The Last Aris

by TR Harris

2019

The only chance to save the universe may rest with the imprisoned Kracion, the last Aris anyone can find. Adam has one final sprint ahead of him, with Te'moc, the Sol-Kor, and his own darker impulses closing in.

The Human Chronicles books in chronological order

  1. Book cover for "The Fringe Worlds"

    The Fringe Worlds

    by TR Harris

    2011The Human Chronicles, Book 1
  2. Book cover for "Alien Assassin"

    Alien Assassin

    by TR Harris

    2012The Human Chronicles, Book 2
  3. Book cover for "The War of Pawns"

    The War of Pawns

    by TR Harris

    2012The Human Chronicles, Book 3
  4. Book cover for "The Tactics of Revenge"

    The Tactics of Revenge

    by TR Harris

    2012The Human Chronicles, Book 4
  5. Book cover for "The Legend of Earth"

    The Legend of Earth

    by TR Harris

    2013The Human Chronicles, Book 5
  6. Book cover for "Cain's Crusaders"

    Cain's Crusaders

    by TR Harris

    2013The Human Chronicles, Book 6
  7. Book cover for "The Apex Predator"

    The Apex Predator

    by TR Harris

    2013The Human Chronicles, Book 7
  8. Book cover for "A Galaxy to Conquer"

    A Galaxy to Conquer

    by TR Harris

    2014The Human Chronicles, Book 8
  9. Book cover for "The Masters of War"

    The Masters of War

    by TR Harris

    2014The Human Chronicles, Book 9
  10. Book cover for "Prelude to War"

    Prelude to War

    by TR Harris

    2015The Human Chronicles, Book 10
  11. Book cover for "The Unreachable Stars"

    The Unreachable Stars

    by TR Harris

    2015The Human Chronicles, Book 11
  12. Book cover for "When Earth Reigned Supreme"

    When Earth Reigned Supreme

    by TR Harris

    2016The Human Chronicles, Book 12
  13. Book cover for "A Clash of Aliens"

    A Clash of Aliens

    by TR Harris

    2016The Human Chronicles, Book 13
  14. Book cover for "Battlelines"

    Battlelines

    by TR Harris

    2016The Human Chronicles, Book 14
  15. Book cover for "The Copernicus Deception"

    The Copernicus Deception

    by TR Harris

    2016The Human Chronicles, Book 15
  16. Book cover for "Scorched Earth"

    Scorched Earth

    by TR Harris

    2016The Human Chronicles, Book 16
  17. Book cover for "Alien Games"

    Alien Games

    by TR Harris

    2016The Human Chronicles, Book 17
  18. Book cover for "The Cain Legacy"

    The Cain Legacy

    by TR Harris

    2017The Human Chronicles, Book 18
  19. Book cover for "The Andromeda Mission"

    The Andromeda Mission

    by TR Harris

    2017The Human Chronicles, Book 19
  20. Book cover for "Last Species Standing"

    Last Species Standing

    by TR Harris

    2017The Human Chronicles, Book 20
  21. Book cover for "Invasion Force"

    Invasion Force

    by TR Harris

    2017The Human Chronicles, Book 21
  22. Book cover for "Force of Gravity"

    Force of Gravity

    by TR Harris

    2017The Human Chronicles, Book 22
  23. Book cover for "Mission Critical"

    Mission Critical

    by TR Harris

    2018The Human Chronicles, Book 23
  24. Book cover for "The Lost Universe"

    The Lost Universe

    by TR Harris

    2018The Human Chronicles, Book 24
  25. Book cover for "The Immortal War"

    The Immortal War

    by TR Harris

    2018The Human Chronicles, Book 25
  26. Book cover for "Destroyer of Worlds"

    Destroyer of Worlds

    by TR Harris

    2019The Human Chronicles, Book 26
  27. Book cover for "Phantoms"

    Phantoms

    by TR Harris

    2019The Human Chronicles, Book 27
  28. Book cover for "Terminus Rising"

    Terminus Rising

    by TR Harris

    2019The Human Chronicles, Book 28
  29. Book cover for "The Last Aris"

    The Last Aris

    by TR Harris

    2019The Human Chronicles, Book 29

Series background & context

The Human Chronicles runs on a simple and very entertaining reversal: Adam Cain is abducted into a galaxy full of aliens, only to discover that humans are the physically terrifying species. Stronger, faster, tougher, and a lot less patient, Adam arrives in space as the kind of problem most alien empires are not equipped to handle.

Adam is an ex-Navy SEAL, but the series is not just military science fiction in uniform. It starts with him lost, angry, and trying to get home in The Fringe Worlds. Soon he is teamed with people who become the heart of the saga, especially Riyad Tarazi and Sherri Valentine, and the books turn into a long chain of rescues, raids, dirty bargains, space battles, and increasingly dangerous wars.

Adam is the engine, but the group dynamic is what makes the series stick.

The setting keeps widening as the books go on. Early on, there is a frontier feel, with pirates, smugglers, and local power struggles doing a lot of the heavy lifting. Then the story stretches into galactic politics, ancient rivalries, alternate universes, old superweapons, and conflicts that can wipe out whole civilizations. Human pride is part of the fun, but it is also part of the danger. Harris keeps asking what happens when the toughest species in the room is also reckless, homesick, sarcastic, and very willing to take things personally.

That gives the series a tone that sits somewhere between military adventure and pulpy space opera. There are giant fleets and galaxy-sized stakes, but there is also a street-level texture. Characters bicker. Plans go wrong. People get bruised, tired, and annoyed. Even when the scale gets huge, the books usually keep one boot planted on the ground.

Across the full run, the larger arc keeps building around old enemies, hidden manipulators, and the long consequences of Adam's arrival in this universe. Some books feel like one mission, some like one phase of a much bigger war, but all of them feed the same idea: once Adam Cain is loose, the galaxy does not get to stay comfortable.

If you want solemn, polished space opera, this probably is not it. If you want fast momentum, blunt humor, loyal teammates, and a hero who treats impossible odds like a personal insult, The Human Chronicles makes its case very quickly. Start with The Fringe Worlds and you will know within a few chapters whether Adam Cain is your kind of trouble.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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