Where to Start with A.E. Warren
For readers looking to dive into the dystopian, genetically-stratified world of A.E. Warren, there is only one logical entry point: Subject Twenty-One. Because the Tomorrow’s Ancestors series follows a single continuous narrative arc, starting from the beginning is essential to understanding the complex social hierarchy, genetic ethics, and evolving rebellion. Reading the books out of order will spoil significant plot developments and major character reveals.
Tomorrow’s Ancestors Reading Order
The Tomorrow’s Ancestors saga is read in the same sequence as its publication. However, because the first two books were originally self-published under different names before being picked up and reissued by Del Rey UK, readers sometimes search for the old titles. Below is the correct chronological and publication reading order:
- Book 1: Subject Twenty-One (Originally self-published in 2018 as The Museum of Second Chances; republished by Del Rey UK in 2021)
- Book 2: The Hidden Base (Originally self-published in 2020 as The Base of Reflections; republished by Del Rey UK in 2021)
- Book 3: The Fourth Species (Published by Del Rey UK in 2022)
- Book 4: The Final Rising (Published by Del Rey UK in 2023)
What to Know Before You Start
Set 250 years in the future after a devastating pandemic has wiped out 95% of the human population, the world of Tomorrow's Ancestors is structured around a strict genetically-engineered class hierarchy. The society is split into three main classes:
- Sapiens: The lowest class. These are unmodified, natural-born humans who are heavily oppressed and forced to perform menial labor as penance for the ecological ruin caused by their historical ancestors.
- Medius: The middle class, possessing minor genetic modifications that allow them to handle administrative and supervisory tasks.
- Potiors: The ruling elite, who have been heavily genetically engineered for physical and intellectual superiority, maintaining total control over society.
The story begins in the Museum of Evolution, where Elise, an impoverished Sapien, takes a job as a "Companion" to escape her bleak life. There, she is tasked with interacting with Subject Twenty-One (Kit), a Neanderthal brought back from extinction. Their interactions, conducted largely via sign language, quickly lead Elise to realize that the history taught by the Potiors is built on lies, setting off a chain reaction that threatens the entire societal structure.
Detailed Book Summaries
Subject Twenty-One
Introduces Elise and her life inside the Museum of Evolution. While trying to protect her family, she bonds with Kit, the cloned Neanderthal. As she gains his trust, she uncovers dark secrets hidden within the museum's walls and realizes she must make a choice between self-preservation and the truth.
The Hidden Base
Following her escape from the museum, Elise seeks out the resistance. She arrives at a secret base, only to discover that the struggle for freedom is filled with internal conflicts, differing ideologies, and new scientific dangers. Elise must navigate the precarious politics of rebellion while maintaining her core ethics.
The Fourth Species
Now working with the infiltration department of the resistance, Elise grows increasingly frustrated by their inaction. Tensions mount as we follow multiple perspectives, including Twenty-Two (struggling with her newfound freedom after imprisonment) and Genevieve (a Medius who begins to question the morality of the Potiors). Their paths converge when an unpredictable threat places everyone in peril.
The Final Rising
The dramatic conclusion to the series. After an attack on the settlement of Uracil, Elise and her remaining allies are forced to flee. They must locate their captured friends, root out a suspected traitor, and decide whether to retreat to safety or launch one final, high-stakes stand to overthrow the Potiors and reshape their world.
Practical Reader Advice
Can these books be read as standalones? No. The series is a highly serialized, character-driven story. Key conflicts, character arcs, and thematic developments build directly from one book to the next. You will be lost if you skip books or start in the middle.
Are there spin-offs or short stories? Currently, there are no published spin-offs, side stories, or co-authored works in the Tomorrow’s Ancestors universe. The four main novels comprise the entire narrative.
Are there any reading order disagreements? No. Because the narrative is linear and follows a clear timeline, there are no alternate chronological or thematic reading orders suggested by the author or fan community. Simply follow the standard 1 to 4 order.