what happens to roxy tom and chambers when Driscoll dies? how do they feel about their new lives?

Roxy is charged with caring for her master's son, Tom, along with her own child, Chambers after Driscoll dies. Roxy is kept awake by the horrifying thought that one day, her own child will grow up and face the risk of being sold down the river. She reflects on how unfair it is that young Master Tom will never have to worry about such a fate, whereas her own child - who has not done anything wrong - is condemned to a life of hardship.