*Pops in*
So I was reading Isolde's brilliant research on the whole Darva aspect and I wanted to point out a possible idea to this point of hers:
It would be cool if one of our characters could get their hands on either An Account of the Circumnavigation of Mizahar, which supposedly you can find in any library in a lot of the countries, so the Knights should likely have a copy, or even a copy of the map of Darva that Charm had before she vanished. Iskessah might even still have the copy that was made last time she went to the island.
First off, books are expensive, so you might not be able to convince the knighthood to part with such an important book.
However, books can be copied. And paper is not as expensive. Also, if you have 10 PCs copying a single book, then it wouldn't be much time spent for each character.
This is just a thought that you can either take or not. I kind of borrowed this idea from medieval scholars who did not have enough money to buy their textbooks, but they could buy paper and rent out sections of a single textbook to copy down. A textbook might be divided into several sections that multiple students would borrow at the same time to copy. Or Lorden could just copy the whole thing
I know he was working on some copying skills at one point and he might pick up some navigation skills if he's reading and copying this book.