Mars Xi can kill you with her mind, but she'll need more than psychic powers to save her in Killing Gravity, the thrilling science fiction space adventure debut by Corey J. White. Before she escaped in a bloody coup, MEPHISTO transformed Mariam Xi into a deadly voidwitch. Their training left her with terrifying capabilities, a fierce sense of independence, a deficit of trust, and an experimental pet named Seven. She's spent her life on the run, but...

She killed the man who trained her. She killed the fleet that came for her. She killed the planet that caged her. Now she must confront her father. Mars Xi is on the run, a bounty on her head and a kill count on her conscience. All she has left are her mutant cat Ocho and her fellow human weapon Pale, a young boy wracked by seizures who can kill with a thought. She needs him treated, and she needs to escape, and the only thread left to pull is her...