Major Works
Fiction
Karo Rei’s fiction is primarily set in Europe and explores the lives of individuals moving through complex political, technological, and cultural landscapes. Her stories often focus on quiet personal choices within larger systems — the tension between freedom and structure, belonging and identity, and the subtle ways people navigate power, technology, and society.
Revelation of Yoha
A political science fiction series set in a divided near-future Europe.The story follows a young woman pursued by multiple intelligence and military structures after escaping a research facility connected to AI-driven governance systems. As she crosses borders and allegiances, the narrative examines ownership, freedom, and the ethics of survival within managed societies.
The Invisible Side of Eva
A quiet psychological fiction about what remains unseen.
Set in contemporary Europe, The Invisible Side of Eva follows a woman whose presence is defined less by what she does than by what she absorbs—unspoken tensions, half-hidden desires, and the emotional weight others leave behind.
The story explores intimacy, silence, and the invisible labor of feeling, asking where responsibility begins when no clear action has taken place.
The Last Variable
In a near-future Europe ruled not by governments but by corporations, private militias, and algorithmic control, stability is enforced through violence.
Zofia Kołodziejska,
daughter of a former professor of AI at the Warsaw University of Technology, hides in Warsaw’s Grey Quarter after her father’s mysterious disappearance. By night, she works with an underground network of young engineers developing VARIA — a decentralized crisis prediction system designed to identify the final missing variable in existing models: the human moral threshold.
But VARIA is far more dangerous than a weapon.
As corporate enforcers begin hunting unauthorized systems, Zofia must flee across Warsaw with fragments of evolving code — guided by her private AI, REM, which does not merely predict collapse, but questions it.
In a society ruled by probability, the final variable may not be data.
It may be choice.
The All Good Paradox
A speculative fiction novel centered on causality, probability, and intervention.Set in contemporary Europe, the story explores how small disturbances in decision-making can reshape a single life, without relying on parallel worlds or alternate selves. The focus remains on responsibility, choice, and the psychological cost of attempting to correct the past.
Read the Works
Selected works are available internationally: