Full Review for Patreon on Monday (Oct. 7th). In the meantime, here are some early expectations with zero spoilers.
You're going to want to read this book if you:
-enjoy historical fiction
-are not squeamish
-read & enjoyed The Laws of Skies by Grégoire Courtois (very similar vibes, storytelling style)
-read and enjoyed Perfume: The Story of a Murderer by Patrick Süskind
-can endure disturbing accounts of gruesome violent acts against people of all ages and animals
-are fascinated by stories centered on people who are casually cruel with zero provocation
-"bad seeds"
-A woman takes a nanny position for a wealthy family to look after their peculiar children and get caught up in family affairs (trope)
-unlikable main characters that are unpredictable
-love to feel bad for laughing at awful things *sheepish grin*

In other words, you need it.
*Be mindful, this is NOT for sensitive readers