Dungeon Brain

From Bram Stoker Award-winning author Benjamin Kane Ethridge.
On a distant planet, war rages between an alien race and the small society of humans who escaped their genetic laboratories. In a forested region on the outskirts of battle, June Nilman is held as a prisoner of that war. Stricken with amnesia and trapped in an abandoned hospital, her caretaker, Nurse Maggie, presides over her with a horrible, mysterious fascination.
At night June hears the aliens patrolling in and out of the hospital, and in time discovers Maggie has mental control over them. But June has thousands of personalities in her head to probe for help. Unfortunately, they're all deviants and criminals and dipping into their minds is often a practice in psychological endurance.
Escape seems impossible until June discovers a rat hole in the wall-the starting point of her freedom. But when she ventures out into a war-torn world, she discovers all manner of genetic creations and a dangerous power she cannot control. And as her bloodstained past slowly comes unraveled, it brings her face to face with the most horrifying truth of all.