well, I finished the book and the Lore that went into this reading is crazy. The book wasn’t really making sense with switching between two character but it all came together at the end of the book.

POV me reading the lore
So the plot advances and Sarah goes through some internal struggles with herself. She found that Quakerism was nice, but the racism didn’t go away in the north, definitely not in the south. So she gets rebellious and starts a abolition movement and she manages to get her sister Nina from Charleston and the both of them cause a rebellion and basically the whole nation to go after them and even stoning them. by the way, everyone aged 20 years so now Sarah is middle aged. Yikes that seems like a reference to the bible of the Jews trying to stone A prostitute.

Hetty aged 30 years and now she was coming up with a masterplan to get out of slavery. She had a child named sky and they managed to save alot of money. However, HER MOM SOMEHOW FOUND HER WAY BACK INTO HER HOUSE AFTER 13 YEARS. Plot twist of the century
Another crazy thing is that Sarah came back to Charleston after 16 years and came back despite AN ARREST TO COME BACK BECAUSE OF HER REBELLIOUS SWITCH. She came to plan escape with hetty and sky and that is where the book ends. to be honest it is a very unexpected ending but id say that it is a good book.
The overall theme seems to be finding your place and passion and ultimately staying un unity despite bad times being that Sarah, Hetty, and Sky went on a boat and went up north. (BTW thank you Mrs. Johnson for recommending this book.)