Reality Breaker by Daniella A. Gnollwood

SPSFC 2023

For years, the forces of earth have been tampering with genetics, constantly refining and exploiting their Breakers--humans with varying measures of alien DNA . During a routine mission, Breaker Sierra is attacked by a Xoa construct horde and is nearly overwhelmed. She's saved at the last minute by handsome Desmond Carro, a radio operator who's had his eye on her for some time. Neither Sierra nor Desmond know about the terrible secret nestled deep within the Breaker ranks, but when a superior officer orders Desmond to assassinate Sierra, they both know something is deeply wrong. As they traverse the labyrinthine interior of an occupied Xoa moon, they unravel the mystery piece by piece, while falling for each other in the process. Their investigation turns into a race against time when they discover the horrible truth about Sierra's creation. Without assistance, nothing less than humanity's very existence is at stake. With seemingly no one to turn to for help, their problems are compounded by the appearance of a being called the Reality Breaker, who only wishes to see a grim prophesy fulfilled. Thankfully, they aren't alone.