The Recommended Reading Path
Eliza Green's Genesis series, originally known as the Exilon 5 series, is a gripping mix of dystopian survival, deep-space colonization, and political conspiracy. Spanning eight main novels and two essential prequels, the series presents a richly detailed universe where humanity's desperate flight from a dying Earth collides with the native species of a new world. To get the most out of this intricate narrative, readers have two primary choices: dive in with the publication order starting with Genesis Code, or follow the strict chronological timeline by beginning with the prequel novellas. We highly recommend starting with Genesis Code. It establishes the central mysteries, introducing investigator Bill Taggart as the reader's primary perspective, before the prequels flesh out the historical backstories of Earth's fall and the Indigenes' first contact.
The Complete Genesis Series in Reading Order
Here is the breakdown of the entire series. Many of these books were originally published under different titles during their initial run as the Exilon 5 series. We have included both the current Genesis titles and their original names to help you track down copies without accidentally buying the same book twice.
Echoes of Earth (Book 0.5)
Set on a decaying, heavily polluted Earth in the mid-22nd century, this prequel novella introduces investigator Bill Taggart and his wife, Isla. As they struggle to find meaning and survive in Earth's harsh environment, they cross paths with an influential figure whose secrets will change their lives forever. This story sets up the desperate atmosphere that drove humanity to look to the stars and provides critical emotional context for Bill's motivations in the first novel.
New Origin (Book 0.6)
This prequel shifts the setting to the alien planet Exilon 5. It explores the arrival of the first human exploratory vessels from the perspective of the Indigenes, the planet's native, blue-skinned inhabitants. The story focuses on Stephen and Anton as they witness the initial human encroachment on their homeland. It shows how the peaceful lifestyle of the Indigenes was shattered by the arrival of desperate, colonization-focused humans, setting the stage for the interspecies conflicts to come.
Genesis Code (Book 1)
Originally published under the title Becoming Human, this is the official starting point of the main series. Years after his wife Isla vanishes during a mission, ITF investigator Bill Taggart is sent to the terraformed colony of Exilon 5. Nominally tasked with investigating a series of anomalies, Bill is secretly searching for clues about Isla's fate. Instead, he uncovers a massive corporate conspiracy, government cover-ups, and the complex reality of the Indigenes living beneath the planet's surface.
Genesis Lie (Book 2)
Originally published as Altered Reality, the second book escalates the tension. Bill Taggart teams up with Laura O'Halloran to decipher a series of cryptic, coded messages. As they dig deeper, they realize that the human colonial administration's plans for the terraforming of Exilon 5 are built on a dangerous lie that threatens both species. The relationship between the humans and the Indigenes grows increasingly strained as radical factions on both sides prepare for conflict.
Genesis War (Book 3)
Originally published as Crimson Dawn, this novel brings the underlying tensions to a boiling point. Open conflict breaks out on Exilon 5. Bill finds his loyalties deeply divided between the preservation of the native Indigenes and the survival of the human refugees. Amid the chaos, a biological weapon is deployed, prompting a desperate race to find a cure before one or both populations are completely wiped out.
Genesis Pact (Book 4)
Originally published as Quantum Silence, this book deals with the fragile aftermath of the war. A temporary truce is established, but it is threatened by the rise of new political opportunists and hidden agendas. Bill and his allies must navigate a complex web of espionage and shifting alliances to maintain the peace, realizing that the threats to Exilon 5 are far from over.
Genesis Trade (Book 5)
Originally published under the title Isobel & Marcus, the fifth installment shifts its focus back to a lawless, corporate-controlled Earth. The narrative follows Isobel, a genetically altered human who returns to Earth to find her husband, only to be captured and sold into the black market trade. Marcus, a syndicate operative working for the ruthless crime boss Gaetano Agostini, is tasked with managing these returning altered humans. When Marcus is betrayed by his boss, he and Isobel must form an unlikely alliance to survive.
Genesis Variant (Book 6)
The action returns to Exilon 5, picking up eight years after the events of Genesis Pact. The elite human rulers who vanished during the earlier conflicts return, but they have been genetically modified into something far more powerful than ordinary humans or Indigenes. Led by the ambitious Tanya Li, they begin draining New London's power grid. Bill Taggart discovers that Tanya's true objective is the eradication of the Indigenes, forcing him to ally with past adversaries to prevent a genocide.
Genesis Cure (Book 7)
Following a devastating attack on District Three, a lethal virus begins spreading rapidly through the Indigene populations. Lacking the medical infrastructure or knowledge to combat the virus, Bill Taggart is forced to make a dark, morally compromising deal with a sworn enemy to obtain the only known vaccine, highlighting the desperate lengths the characters must go to to preserve their civilizations.
Genesis Rising (Book 8)
The final novel brings the long-running saga to its conclusion. With the virus contained but tensions at an all-time high, a massive rebellion threatens to tear what remains of Exilon 5's society apart. Bill, Laura, Stephen, and their allies must make a final stand to bridge the gap between humans and Indigenes, deciding once and for all if the two species can coexist or if they are destined for mutual destruction.
Chronological vs. Publication Order: Navigating the Rebranding
For readers looking to dive into the series, the differences between publication order and chronological order are relatively straightforward. The two prequels, Echoes of Earth and New Origin, were written and released after the first few novels but take place before Genesis Code. Reading them first offers a chronological overview of how both Earth fell and how Exilon 5 was colonized. However, reading them later as backstory capsules is also highly effective, as it preserves the mystery of Bill Taggart's initial investigation in Genesis Code. Additionally, readers should note that Eliza Green rebranded the entire series from the Exilon 5 Trilogy to the Genesis Series when she expanded the story beyond the original three books. Keeping track of the dual titles (such as Becoming Human/Genesis Code) is essential when seeking out physical copies of the early novels.
What to Know Before You Start: The Exilon 5 Universe
Before beginning your journey, it helps to understand the tone and themes of Eliza Green's work. The Genesis series is not a space opera with lasers and faster-than-light space battles. Instead, it is a grounded, noir-infused science fiction thriller. It focuses on the harsh realities of environmental collapse, the corporate greed of colonization, and the ethical dilemmas of genetic engineering. The story is highly serialized, meaning that each book builds directly on the events of the previous one. While Genesis Trade introduces new characters and a different setting on Earth, it remains a critical piece of the overarching puzzle that connects back to the events on Exilon 5 in Genesis Variant. Standalone reading is not recommended; this is a saga best enjoyed from start to finish.
Practical Advice for Readers
If you are new to the series, start with Genesis Code (or Becoming Human). Do not skip Genesis Trade (Book 5), as the characters and political developments introduced there become vital players in the final three books. While the prequels are excellent additions that expand the lore of the Indigenes and Bill's marriage, they can easily be read after Book 3 or Book 4 when you already have an investment in the characters and want to understand the origins of the conflict more deeply.