This book is still the best thing ever from concept alone. I miss novelty works. YA takes itself so damn seriously that it was such a relief to see this. The cover alone makes me laugh every time I think of it. I was not expecting high quality literature, but oh my god this seemed like it was going to be fun. 
 I'm disappointed by the finished product, mostly because that great title is also misleading; this book is not about Marie Antoinette, Serial Killer. It's about a stupid American high school student and her bitchy friends. Yes, I'm throwing a tantrum over this detail. The title and cover are what sold the book to me, I wanted to read about Marie Antoinette, Serial Killer. I want crappy Frenchsploitation. 
 Plot breakdown; The ghost of Marie Antoinette is decapitating the descendants of French nobles that betrayed her to revolutionaries. Our MC is, you guessed it, secretly the descendent of royalty and is also the Special who can stop the ghost through the power of...pure bloodlines? It's iffy. The whole thing is resolved because Marie's BFF actually didn't betray her, and all MC had to do was tell Marie Antoinette that, and everything got resolved. The best parts are the murders, you almost want everyone to die just so it keeps happening. 
 And the modern setting and it's cast are just so odious. The worst teen girls. The main character is one of the popular girls but kind of poor but wants to fit in and the popular girls are horrid and wasteful and rich and can't you see the contrast? There's all this BS that she'd the only one in the group that can pass for an actual Parisian and everything she does is perfect and there is not execution of making this a good story outside of Marie Antoinette decapitating people. I hate throwing this term out, so keep in mind I do not do it lightly, but it was such a lazy Mary Sue kind of deal. Genre-wise, it's a mess. It's not a mystery, it's not horror, it's not this wonky-bonkers madcap thrillride, if anything it's high school drama smash cut with some people dying. 
 And I get it, why would I expect anything high quality from a title like Marie Antoinette, Serial Killer? Well, I know things can be bad and still enjoyed. But it's like outside of this book's marketing, we lost any sense of tone and awareness of how fun/crazy this concept was. You can have a well-crafted parody or pastiche. This was just capitalizing on the name of Marie Antoinette, and you know how defensive I am of dead queens. 
 Still, I'm glad I read this monstrosity. There are snippets of really fun references to anyone who loves that point in history, and the Queen of Fashion wielding weapons, in ghost form or not, has this really fun mental image. If anything, it made me want to make a 70's exploitation movie of Marie Antoinette, Serial Killer, cutting the plot we're actually supposed to care about and reveling in murder and silk.