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Reviewed by Jamie Michele for Readers' Favorite
Tasha He’s Caenogenesis, book one of the science fiction Gemini Files series, is set in the fractured city of Ignis, where a Synthetic weapon known as Project Gemini escapes the laboratory that engineered her and begins moving through the districts under the name Yin. Genetically adaptive and trained for combat, she forms an uneasy alliance with Theopold Kraken, a former gang member navigating the fallout of a failed prison break and mounting state surveillance. As government officials seek to recapture her for military replication, Yin’s body begins to break down due to internal nanobot damage, forcing her to confront the scientist responsible for her design and the buried memories he suppressed. Evidence of a second Synthetic built from the same program shifts the balance of power inside the city’s divided political order, drawing Yin and Kraken deeper into a conflict that threatens to redraw the boundaries of control in Ignis. Each chapter opens with an original character sketch in black and white by the talented Emmeli Markegård.
Tasha He’s Caenogenesis is an ambitious and spectacularly executed novel, in a postwar Ignis, where the titular term “caenogenesis” refers directly to an altered development of inherited patterns, and its application to Yin’s engineered genome. The author's tech is as brilliant as the world-building. Readers are able to deep dive into the aftermath of a 2026 nuclear war, where ocular implants broadcast advertising into citizens’ vision, and the division between Modernist districts and Retro sectors, like Scraptown, is fortified by a wall with biometric checkpoints. Yin is the central force, and we witness her evolving understanding of choice right alongside her. Kraken also appears as a fully realized character in the insurgent network, with a totally believable personal ethic that persists inside insurgent operations and informs his tactical judgments. I love the cinematic settings and landscapes. Scrap towers, a swinging industrial electromagnet, and a storm-darkened sky streaked with particulate ash frame a climactic confrontation. This is an intelligently written introduction to a new series, and I'm excited to see what comes next. Very highly recommended.