User blog comment:Miskos3/Fairy Tail Chapters 532 & 533, Review/@comment-7070784-20170422053208/@comment-5303512-20170427150347

She stated that they are letters to Coby, after reading the entire book, if that isn't decoding then I don't know what is. She had to decode it, or else she wouldn't know what was inside. And she stated that while the book was under the spell, so no. Just because she is not the author doesn't mean she can't decipher something, like other smart people that can.