The sad thing is not that this book is an absolute disappointment, but that the author is a sweetheart and she didn't have a better editor available at the time of publishing this. Because I think it's amazing that she got two bookdeals on this idea and none of them offered some proper feedback.
This book starts with two maps, a four-and-a-half-page glossary, and two pages on the translation of a fake language. It's a lot. Which would have been fine, if the translation didn't include the following: 'v' aelerian for 'my love', 'x' aelerian for 'my soul', 'y' aelerian for 'my sun', 'z' for my moon. So many translations yet it doesn't include 'matska' / 'mattas', which is often referenced in the book. Here are also some excerpts of the glossary, which might explain my frustration with it:
"Minor gods: (..) Those who suffer from mortality often cling to certain Major Gods to win favour or try to find unorthodox methods to prolong their life."
"Circedarae: (...) Wings are a circedera's pride and joy, and they are often very protective of their own wings as well as those of their loved ones. (...)"
None of these are necessary if it's just well shown in the book, or mayhaps, not even necessary to mention if it doesn't even come up in the book. The choice of a glossary at the start also annoys me, but it's not wrong. However, a glossary is supposed to be reference material, and here it feels more like the author copy pasted some character designs and plot ideas, and called it 'the glossary'.
Our main characters are disappointing. Aedlynn is an edge lord who gets five chapters with her POV at the beginning of the book and then fades into nothingness until she meets Diana, and the only thing I could think of was that those five chapters could have been summarized in a short flashback or a more extensive conversation.
Diana is a sick girl of who I expected to see her struggle with it until she won over it, as the summary might make you think, but instead she's barely sick until she keeps level'ing up like some pokemon who gets a new power with every level. And to prepare you, she levels up a lot. Every time you think that there is not anything left for her to have, the author throws another piece of magic or a special skill at you.
I also really struggled to realize what age the characters are because they think and at times behave like they are sixteen, but considering certain past relationships, current actions with new relationships and references they should be older. You just can't read it from their pov's.
Talking about POV's. They're pure suggestions to the author. Reading one's POV in this book also means that you can read thoughts from other people as if you are all knowing. Without knowing anything more or having talked to the author, this looked like clumsy mistakes to me rather than deliberate choices.
Another thing that shows how little the author cared about POV's; the characters could notice things they weren't supposed to notice. So like, they knew when their eyes changed colours, when their eyes crinkled. And even when they could notice things like changes in their voice, a description that goes 'this voice sounded sweetly vicious and dark. Sugar to help the poison go down' after 'my voice didn't quite sound like mine', doesn't really win bonus points in my book.
The sapphic relationship was such a big disappointment. I expected tension, longing, required unrequited love. Instead I got some kind of insta-love that was supposed to be slow build but because all the good things were skipped, you couldn't see any of the important parts. It also doesn't help that when Lena has to deal with some - keeping most stuff vague as to not spoil everything - unwanted things, Aedlynn seems to have some fucked up priorities. Like damn it there is only one sapphic relationship in this book and it's giving NOTHING.
The magic system itself leaves much to be desired because just as with the world building, the author wants too much which leaves us with nothing. Like, I know that in one place it is incredibly hot, and in another it's so cold it snows, but that's also where the physical world ends with me.
During the book it's also obvious that the author took some serious inspiration from at least ACOTAR and the serpent and the wings of the night, and mayhaps some loose inspiration from the shadow and bone series and throne of glass. Her own original ideas couldn't shine just because the ones that weren't were so so obvious.
The one thing I want to compliment is certain side characters like Sorin and Zale - their appearances were a great relief every time - and the voice of the narrator of the audiobook. Switching from physical to audiobook really made me able to finish this.