Mechanical Heart

Theresa is a slave. Her owner is harsh and cruel. She is not aloud to speak unless unless spoken to, look her master in the eye, or turn her back on her master.
William is a kind man. He pretty much lets his slaves do whatever they want.
James is a kind soul. He lives with William as one of the slave owners. He tries to make the slaves as comfortable as possible.
What happens when Theresa is sold to William and James? Find out in this new fanfic.
(set in the time the books are)