I thought I would enjoy this more since I've enjoyed Sebastian and Violet since the first book, and it was pretty obvious they'd end up together. Violet was a much different person than I thought she'd be once we got into her head though, and it took awhile for me to warm up to her.
Seeing Violet and Sebastian both doubt themselves - for different reasons - and trying to prove themselves worthy to their family was frustrating at times. Their insecurities made them vulnerable in similar ways, and they could really only be themselves when they were working together on Violet's theories.
Yes, Violet's theories! (That's in the blurb, but also becomes immediately obvious in the first chapter, so it's not a spoiler.) Violet wasn't allowed to publish her theories under her own name, since no one would even read them given that she's a woman. So Sebastian has been presenting her theories as his own, and the constant lies and the derision from some of the public have worn him down. Women having to hide their intelligence and discoveries behind men's names was sadly not unheard of, and I found this aspect of the story engaging, even if it ended a bit more fairy tale than could be believed. (Or the author decided to not focus on any of the negatives
after Violet went to prison.
I really liked seeing these two friends break down their barriers and become more than friends, but it didn't quite grab me as much as the previous couples.