Particle Horizon: When the stars go dark, first contact becomes last defense.

In rural Montana, disgraced physicist Dr. Eleanor Harrington detects strange gravitational anomalies-the same patterns she predicted in her controversial paper fifteen years ago, the one that destroyed her career and labeled her a crackpot. When massive alien vessels appear in Earth's orbit, her vindication comes with a terrible price: she was right about everything.

As humanity faces an overwhelming technological disadvantage against the silent, crystalline Voidborn, Harrington is suddenly thrust from isolation back into the scientific community that once rejected her. Alongside her former student Dr. Marcus Chen, she races to implement the defensive system she theorized years ago-a modified particle accelerator at CERN that might exploit the one vulnerability in the aliens' silicon-based neural networks.

With world governments in chaos, military defenses failing, and the aliens methodically dismantling Earth's infrastructure without firing a single shot, Harrington's team works desperately to convert the world's largest scientific instrument into a weapon. But they face impossible engineering challenges, dwindling resources, and the relentless advance of alien forces converging on their location.

Particle Horizon is a gripping first-contact thriller that explores how humanity might face an existential threat with ingenuity and courage, even as time runs out. Can a brilliant scientist-once an outcast for her wild theories-lead humanity's last stand against an enemy that sees us as nothing more than resources to be harvested?