Chaos Reigning Jessie Mihalik

As a child, Catarina von Hasenberg was often sick. But what no one other than she, her father, and a handful of scientists know that she wasn't really sick, her family was experimenting on her trying to play with her genes to make her faster, stronger, etc.  She was the youngest in a family of six so she was more expendable and her father is more interested in a way to gain power than keeping his family alive. Her bonds with her siblings are tight and Catarina is willing to help them in the fight against the Syndicate, a group that is trying to take over power from the Royal Consortium of which the von Hasenbergs are one of the three High Houses.
Cat has been invited to a house party at one of the family's that is suspected to be plotting against the Royal Consortium. Her sister Bianca is worried about her safety and sends two people along with Cat, Alex and Aoife. Aoife will be her bodyguard and Alex is going to pose as Cat's newest boy toy. Since no one knows about Cat's skills, she chafes against the restrictions but realizes why her sister might want to send her extra help, especially since she's the youngest and everyone is used to thinking of her as being weak.
I would definitely read the first two books in the series before this one. I don't think you necessarily have to but the series as a whole is amazing and worth reading. Of the three heroines, I think I connected to Cat the least but I couldn't put my finger on why. She is just as kick ass as her sisters  but I think the mask she had to wear annoyed even me. It also took me a bit of time to get into the story but, once it picked up, it really became wonderful.

Four stars
Follows Aurora Rising
This book comes out May 19, 2020
ARC kindly provided by Harper Voyager Trade and Edelweiss
Opinions are my own