I liked the idea of this story - the main premise of a slave (serf) in England before slavery was abolished was very interesting. I don't think the plot fully lived up to the idea though. There were too many sub-plots which took away from the main story. A problem of too much breadth and not enough depth.
While I like the premise, I felt the resolutions came too easily and unrealistically. The blackmailer in particular was resolved much too easily and did not feel at all true to character. The person of the murderer was more plausible, but the resolution was completely unrealistic. Did no one think the rescuers would not be searched for?
Then there are the friends. Hester's activities were completely unrealistic. And if John really loved her, he should have stopped her destructive behavior quite a bit before he did. That she escaped harm, disease, or pregnancy was not at all likely. And that a man would stand by for apparently years while that went on, when all he had to do was romp with her once, is also unrealistic.
Laura waiting by stoically was more realistic, but I'm curious to why she wouldn't live at their main residence and why she seemed to have no friends or contacts of her own, since she was from a wealthy, well-born family herself. And then that she would decide on social justice as a means to get her husband's attention?
I wish we'd had more focus on the slavery question and less on the neighbor's love affairs.