This book never really grabbed me. Set on the eve of the Civil War, it's about a non-practicing doctor who goes to visit his friend, a dwarf abolitionist, at the home of his successful sea-faring family in Maine. Turns out the family is cursed by a slave their father murdered when he was a slave trader.
One of the main problems was I was always really aware of the book dealing with history. Characters have careful conversations about exactly how they feel about the upcoming war and slavery, and everyone has opinions that are just right or not quite right enough but not wrong by modern standards. But I couldn't get into the conversations since I knew how all these things eventually shook out and there was nothing particularly interesting in what the characters thought about them. That is, despite the fact that slavery turns out to be central to the plot so it makes sense to tie it to the wider issue, it still felt like the characters were just reciting dialogues about historical things instead of being involved in important conflicts with each other.
A cousin is also rather randomly a suffragist, or at least she was one and now she isn't really involved, and she even more randomly used to be a secretary to Elizabeth Cady Stanton. Like of course she has to be involved with a famous person (just as her cousin is bffs with Frederick Douglass) who drops by to give her own opinions. (From the book you'd almost think that Susan B. Anthony wasn't a firebrand abolitionist herself since Stanton claims she's "retiring" to her farm to "wait out the war" when Stanton will get back to women's rights.)
So I never really got involved in the book even when the curse drove everyone to madness and despair. Though I did like the situation we wind up with in the epilogue.