2492: Attack of the Ancient Cyborg — Eric Nixon

Bryn Struse has a lot to worry about. The orphaned daughter of humanity-saving inventors will soon turn eighteen and inherit the largest company in the Solar Union's history. Getting to that day will involve her uncovering evidence surrounding her parents' disappearance, avoiding mobsters intent on kidnapping her, and surviving a 200-year-old cyborg hell-bent on killing her. With the help of her best friend, Amory, Bryn traverses the dangerous chessboard of trouble and intrigue, which takes place in the near-utopian, space-based setting of the year 2492.