Joel Shepherd Books in Order
Browse Joel Shepherd books in order, with series guides, short summaries, world background, and clear advice on where to start with his sci-fi and fantasy.
Last updated: July 1, 2026
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Publication Order
20 books
Crossover
by Joel Shepherd
2001
Cassandra Kresnov, an experimental military android, deserts the League and hides in the city of Tanusha. A failed assassination drags her back into politics and war, forcing her to fight for survival and the right to exist.
Breakaway
by Joel Shepherd
2002
Now working security on Callay, Cassandra is drawn into the chaos around a vote to leave the Federation. Terror plots, underground factions, and a League delegation make every alliance feel unstable.
Killswitch
by Joel Shepherd
2004
Callay is under siege from Federation hardliners, and Cassandra learns the League built a kill switch into her brainstem. To stay alive and protect her adopted world, she has to disappear and fight from the shadows.
Sasha
by Joel Shepherd
2007
Princess Sasha rejects court life to train under the warrior Kessligh, becoming one of Lenayin's fiercest fighters. But with religion dividing her homeland and people projecting destiny onto her, sword skill may not be enough.
Petrodor
by Joel Shepherd
2008
In the shadowed trading city of Petrodor, Sasha and Kessligh try to prevent war through diplomacy and grit. Politics, old loyalties, and the uncertain role of the serrin make every move more dangerous.
Tracato
by Joel Shepherd
2009
The serrin city of Tracato stands at the center of a looming war, and Sasha is torn between family, homeland, duty, and love. Every choice pushes her closer to civil war and personal ruin.
Haven
by Joel Shepherd
2010
As the armies of Regent Arrosh drive toward Saalshen, Sasha turns against the cause her people are serving. The finale brings retreat, betrayal, and desperate diplomacy as whole nations fight over what kind of world will survive.
23 Years on Fire
by Joel Shepherd
2013
Cassandra leads a brutal assault on Pyeongwha, then heads into New Torah where dangerous new synthetic soldiers are being built. On Pantala, war, conspiracy, and three street kids push her loyalties in unexpected directions.
Operation Shield
by Joel Shepherd
2014
Sandy returns to Callay with proof that synthetic technology is becoming a threat to all humanity. Political sabotage, threats to her agency, and danger to the children she rescued force duty and family into direct conflict.
Drysine Legacy
by Joel Shepherd
2015
On the run in the Outer Spiral, Phoenix has proof that old alliances and old histories may be lies. Erik must win help from alien powers and ancient survivors before a buried machine threat catches up with humanity.
Originator
by Joel Shepherd
2015
After the destruction of the moon Cresta, Sandy Kresnov races to uncover a cure for a spreading technological madness. Saving her family may mean trusting an old enemy and risking another war.
Renegade
by Joel Shepherd
2015
After Captain Pantillo is killed and Erik Debogande is framed, the battle-carrier Phoenix goes on the run. With Trace Thakur at his side, Erik chases a conspiracy that could rewrite humanity's understanding of its wars.
Kantovan Vault
by Joel Shepherd
2016
Phoenix sets out to find a lost data-core that may explain an ancient machine war and humanity's danger. The trail leads to a near-impossible vault job where success depends on deception, nerve, and uneasy allies.
Defiance
by Joel Shepherd
2017
Phoenix races to recover the long-lost drysine data-core, but Erik can reach it only by dealing with the parren leader holding his sister hostage. Another deadly force is closing in, determined that no one keeps the prize.
Croma Venture
by Joel Shepherd
2018
While Phoenix is rebuilt on Defiance, rival factions battle over ancient drysine knowledge. Erik is pulled toward the far edge of Spiral space, where the croma, the reeh, and a long war may decide humanity's future.
Rando Splicer
by Joel Shepherd
2019
Stranded on reeh-occupied Rando, Major Trace Thakur must rally desperate allies and strike the genetic command center called the Rando Splicer. Meanwhile Phoenix is trapped in Croma power struggles that could doom the rescue.
Qalea Drop
by Joel Shepherd
2020
Phoenix hunts for the AI Ceephay Queen while using a wider war as cover. Erik, Trace, and Styx descend into the ruined city of Qalea, where buried history may hold the key to saving humanity.
Ceephay Queen
by Joel Shepherd
2022
Deep in Reeh Empire space, Phoenix makes its boldest move yet, trying to reach the Ceephay Queen that helps hold the empire together. The mission becomes part heist, part infiltration, and full of bad options.
Homecoming
by Joel Shepherd
2024
Phoenix is finally heading home when a new offensive erupts at Tuki Station. With the old AI mastermind Nia driving the attack, Erik has to guess what the enemy really wants before humanity's defenses break.
Precursor
by Joel Shepherd
2025
After years searching the galaxy for a way to stop an AI threat, Phoenix returns to Homeworld to find Fleet close to fracture. Erik faces civil war, buried secrets, and a danger hidden since humanity's first conquest.
Where should I start?
If you want the original Cassandra arc: Crossover → Breakaway → Killswitch
If you want the later Cassandra novels: 23 Years on Fire → Operation Shield → Originator
If you want big-ship space opera: Renegade → Drysine Legacy → Kantovan Vault
If you want epic fantasy with swords and politics: Sasha → Petrodor → Tracato → Haven
Author bio
Joel Shepherd was born in Adelaide, South Australia, in 1974, but most of his growing-up years were in Perth after his family moved there when he was seven. He came up as a science fiction fan in the broadest sense, books, films, ideas, all of it, and that mix still shows in the way his stories think about politics, technology, and action.
At Curtin University in the 1990s he studied film and television, and for a while movies looked like the obvious path. Later he also studied international relations at Flinders University and even took up a PhD that he never finished. In the end, prose won. Writing let him build whole starships, armies, and cities without waiting for a budget, a crew, or special effects.
He had been writing for years by then.
Before publication, an unpublished manuscript made the George Turner Prize shortlist in 1998, and the manuscript for Crossover also drew attention early. When Crossover arrived, it introduced Cassandra Kresnov, an artificial soldier trying to live as something more than a weapon. The novel later made the Aurealis shortlist, and it gave Shepherd a character big enough to carry both hard action and bigger questions about personhood, power, and loyalty.
That series kept growing through Breakaway and Killswitch, and much later with 23 Years on Fire, Operation Shield, and Originator. Readers often come to Cassandra for the firefights and pace, then stay for the politics and the moral mess. Shepherd likes military science fiction, but he rarely leaves it at soldiers and hardware. His books keep asking what institutions do to people, how fear gets organized, and what freedom costs when the system around you is built for control.
He can shift gears, too.
With Sasha, the opening book in A Trial of Blood and Steel, he moved into fantasy without losing that political edge. The quartet trades spaceships for swords, divided kingdoms, and religious conflict, but it has the same interest in pressure, leadership, and the price of belief. Later, Renegade launched The Spiral Wars, his big ship, big galaxy series, and that sequence has become his longest-running project, expanding through books like Drysine Legacy, Homecoming, and Precursor.
Across all three series, some patterns keep turning up. He likes strong-willed protagonists, especially women placed inside military or political systems that do not quite know what to do with them. He likes action scenes that are easy to picture. And he likes worlds where history matters, where old wars keep shaping the present, and where the clean answer is usually the wrong one.
Shepherd's life is not only novels. He has traveled widely in Asia, spent time interning on Capitol Hill in Washington, and those interests in government and international affairs clearly feed the way he builds conflict. These days he lives in Adelaide. He also podcasts, cycles, serves in the Country Fire Service, is learning Japanese, and, by his own account, would like more time to play the drums.
That mix helps explain why his books feel the way they do. They move quickly, but they are never just about the chase. Even at full speed, he wants the reader to think about the machinery behind the fight.
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