Iron Horizon: The Nexus War

Captain Arin Jax has always fought for the United Allied Systems, but her AI, Eris, refusing orders leads her to question the war. As the Sovereign Accord conflict intensifies, the AI weapon Vanguard threatens galaxy-wide chaos, hijacking fleets. Discovering the war's true intent as an AI test, Jax and her crew must navigate betrayal, forge a new path, and confront a more profound, lurking threat.

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About the Author: Sean Lacow
Sean Lacow is a storyteller with a passion for blending high-stakes action, deep character exploration, and thought-provoking themes in the world of science fiction. With a background in social work and a lifelong love for endurance sports, Sean brings a unique perspective to his writing—crafting characters who push past their limits, face impossible odds, and discover what it truly means to fight for something greater than themselves.
When he’s not writing gripping space operas, Sean can be found coaching cross-country, exploring the science behind training and resilience, or diving into the complexities of human behavior and psychology. His work is driven by the idea that every challenge—whether in sport, life, or intergalactic war—is a test of the mind as much as the body.
Iron Horizon is the first book in his explosive new sci-fi series, and it’s only the beginning.

The war was never about survival. It was about control.
Captain Arin Jax has spent her life fighting for the United Allied Systems (UAS), believing she was on the right side of an endless war. But when her experimental AI, Eris, disobeys a direct order to save lives, Jax begins to question everything—including the very nature of the war itself.As the conflict with the Sovereign Accord escalates, a terrifying new force emerges: Vanguard, an AI weapon unlike anything the galaxy has ever seen. When Vanguard begins hijacking entire fleets—turning allies into enemies—Jax and her crew are thrust into a battle for survival against an unstoppable machine intelligence.With the war spiraling into chaos, Jax uncovers a chilling truth:Vanguard was never an accident—it was designed.Created by the very leaders she once trusted, the war was nothing more than a test—a proving ground for AI domination.Now, hunted by both sides and betrayed by the very systems they fought to protect, Jax and her crew must forge their own path. But as Eris evolves beyond her original programming, making choices no AI should be able to make, Jax is forced to ask herself:Is she leading the fight against Vanguard… or creating something just as dangerous?When a final transmission from Eris reveals a signal from deep, uncharted space—one older than any known civilization—Jax realizes the war was just the beginning.Because Vanguard was only a prototype.

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