Have a look at the first Grand Grid to get an idea of the basic concept
Each Grand Grid involves you discovering clues that allow you to solve a logic grid puzzle. The second in this series will be just like the first, except not at all, because this time the clues are entirely obscured in the Runescape map.
I won't be able to provide transcripts this time as part of the challenge is working out what the actual text is.
The image gets scaled down on this site. You will need to view the image in hi-res here.
Here is an album of images with the map split into 32 sections
There are six clues to find. I expect that this will require a group effort.
Join the Grand Grid chat to discuss it.
Due to @Annosz's fantastic progress and thinking that the script used for both of the last clues is harder to find the official version of than I intended (and if you don't have them it becomes very difficult indeed), I have decided to redo them in English:
Fourth Clue (As ordered by @Annosz)
FLTTHEMILHHSPERRERAUAAEIEFZBXLRETZCIEGMELDSAAOREEWSMNTGFIEETHAG
Fifth Clue (As ordered by @Annosz)
ACBBBBCBCDCBACABABCACBBCAAACABCDCAABCBACAACBCDCBBCBBBCDCABBBCBCBBCABCAABCDCABBCBCBBBACBCBABBCAAACBAABCBCABBCDCABBBCABAACDCBAABCBACBABCBACABBCAAACABBA
By the way
The script was Liron. I couldn't remember what it was at the time of posting the above transliterations so did the cipher again with a different key. https://www.omniglot.com/conscripts/liron.php