Oh, my! There is quite a bit I want to discuss. Here it goes.
Sophie Schwimm: If you don't already know my theory by now then I am going to tell you. If you noticed this manga is based off a book called The Kafna of the Wind written by Sophie Schwimm, who is a character in this book. This entire series is depicting that story that Sophie will write, which means we know whatever is coming she survives. Here we learn something that sets up, possibly, how we get this book/series.
Sedona: Due to volume 2 or 3, we got the prediction about one person tearing everything asunder and the one who will not. It seemed to imply that Sedona is the one who is going to be bad, but based on the events in this volume, I don't see how. The same applies to Theo.
Theo: I'm not sure what Theo's role is in all of this. Same with Sedona I can't seem him tearing everything asunder, especially when he knows the largest secret in this world. Yet, he doesn't seemed to be revealing what he knows and what leads to a conversation with a certain person. Also, at least one character, does not think Theo is important, which I was upset on Theo's behalf. This character also reignited how Theo came about, due to his mix-heritage.
Puppets/factions/manipulation: We also learned something that has great implications for the characters in this world. There is a lot of politics happening.
Uria-We learned more about Uria in this volume with a BIG reveal. Through a flashback, we are given a new term for a group of creatures/people/spirits. Basically, we do not know what they are, but apparently they should not be resurrected. Resurrection is interesting term to use and I would like to know what the Japanese was for that section, where resurrection became the best term. Based on the picture, this new term have at least 3 different forms that this group could look like.
Library and Librarians role and function implication for our world: You have heard me mention before in my Magus of the Library Reviews that I think of the Library and Information Science field as being divided by different clans. These clans may share similar principles, but they are not necessarily united, unlike what is presented here. It was mentioned that the Library has all of these artifacts that could be used in great peril and would make the Library very powerful.
Reality does not have that equivalent, as far as I know. There is the American Library Association, but they do not necessarily have the same power as described here. I'm not sure what it would take to have librarians be a bloc. Maybe education? Here every librarian, as in kafna, have to take a test and then do an interview. There is then an apprenticeship, of sorts. Once you complete that you get placed into a different department. That doesn't exist here. There are different degrees that make you qualify for a library clan and you will need another degree to transfer to another library type (i.e., a school librarian needing a teaching degree or a certificate). Some library types do not even require a library degree, such as the law library which just needs the law degree. Yet, the skills of a librarian are same across the board and should not need a librarian be an expert in different things to qualify as a librarian and needs different degrees. The testing process for Kafna doesn't require them to already be an expert. Theo is a prime example of this. I think the differentiation of library types may also prevent librarians being united. The Magus of the Library doesn't have that problem. If it's a book or a text then it belongs in the Great Library. There are no different library types for it all belongs in the Great Library. I am not sure how we got this differentiation, but that is what we have in our world. To sum up, I think it is very interesting to see librarians as being viewed a potential powerful group that could change the world.
Verdict: Part of me feels, we are still setting up the pieces on our chess board before things really get going.