((As for my characters regarding Criss's book Kouta, the only ones likely to have any ability to read it are Fexiryn (She's read many of the books in the secret library and knows certain languages that were only written by species that couldn't speak), and Valarinth herself (She knows some languages that were around before people even started to write).  Both of them are highly magical entities.  Anything Valarinth could do, her dark self can also do if he were to obtain a physical body.  Ikaria wouldn't be able to read it, she's intelligent, but her knowledge wouldn't extend that far.  Tamyshia might be able to talk to the book and understand what was written in it that way, though if she were near someone who could understand it then she would definitely be able to read it.  The book is currently in the library and in your bag behind the counter with Lunacy.))