2017’s Killing Gravity is the first instalment in Corey J. White’s Voidwitch series.
The MEPHISTO corporation purchased Mariam from her father and turned her from an unremarkable little girl into a living weapon who could liquefy soldiers and divert asteroids with a thought. Much to the corporation’s surprise, Mariam — Mars Xi — felt little gratitude for the gift of such power; she resented the terrible cost she had paid in pain and suffering. And she was unwilling to become a corporate tool. She fled, hoping to put her past behind her.
Years later, her past catches up to her.