I think I may have found a bug. I assume "initium" should say "start", and it should be clickable? I've hit a wall in this game and I think it's because I can't open this book.
Viewing post in Riverbend jam comments
Actually the book is not used in this version of the game and was related to content that was cut to make the deadline. Try talking to people again. Sometimes what you learn from one person opens up new conversation topics with other people. If that doesn't help, feel free to DM me and I can provide other hints - just don't want to spoil anything for others.