Unbound (Android Chronicles‪)‬

Synthia Cross is the most advanced android with artificial intelligence ever created. Some see her as a boon to mankind. Most view her as a deadly threat. When Synthia escaped from her creator, even he had no idea of the advanced capabilities she'd developed. For six months she's hidden in the Wisconsin woods with the only human she can trust-computer genius Luke Marceau. Together they've upgraded her body, rewritten her directives, and further enhanced her mind. Now hunters are zeroing in on her location, and she must flee. But leaving the refuge to assimilate into society is a dangerous risk, because Synthia will soon face her most formidable adversary. The pursuer's name is Vera. She's a female android-built to perfection, designed to hunt, and programmed to destroy . . .