It just dawned on me that many people in that world know how crazy her brothers are... How did the readers miss that!? Was the Author hiding it for the sake of the story or did they not even know?
Well, that novel focuses more on the heroine more than anyone, so I don't think exposure of the Duke is more than necessary. Amelia died in that novel, so he went over the crazy and straight to homicidal. Also, the 2nd brother never appear in the novel, I think. Probably because Amelia wasn't there anymore.
I forgot I was reading this. I don't think I made it past the proluge either, but this was a great read, and thank you past me for putting in the "I am reading this" section. Also, thank you for the update, I love this.