Not ready to write much about this yet! But I really loved this book. Extremely fun.

Well written overall. The magic system, however, toes—if not fully crosses—the line of a blood libel trope. I do not make that argument lightly. See below for short explanation. 

The magic of the books relies on the ritual harvesting (there’s no other word for it, as willing as some may be) of Scribes’ blood to make the ink, at the very least. The length of the book determines how much blood, and Scribes do die in the process of making books. More complex spells are composed of other ritually harvested parts, e.g., hair, sinew, skin. That the magic system relies on the ritual harvesting of the blood, lives, and bodies of a specific group of people (Scribes) in service of magic they themselves cannot enact or be affected by, toes the line of blood libel. That the book is focused on a specific, elite group  and one influential character being the ones doing the ritual harvesting… you see what I mean.

Read with care and caution. 

I do agree that Collins and Nicholas should have been endgame. 

I received the audiobook from Netgalley for my honest review.
The narrator is amazing, I've listened to several books shes done and when I heard her voice I actually pumped my fist in the air, I knew instantly this was going to be a book I would enjoy. 
This book starts as a 2 pov then by like ch 5 you get a 3rd pov and it starts to alternate between the three every chapter or so. It threw me off a little bc I thought I missed something but Törzs does this to get to know the sisters a bit better which ultimately works really well. This feels like a which-y version of the Library of Alexandria- magic isn't know by everyone and spell books aren't as easy to come by as other stories have you to believe. Only a specific person can write spell books...in blood. Okay its not that dark of a book but it does have some trauma involving the "scribe". When reading I kept trying to put the 4 main characters in to represent each word in the title, doesn't really work that way. But I think my favorite thing in this book is the Mirror Magic! It is done so well and very cool.