Hi! This is a great scenario that I enjoyed reading very much. n_n I liked that even the minor quests you would encounter in the beginning (finding lost sheep and things) would lead the players toward discovering clues of the bigger event that's happening (the discovery that they would make on the summit where the sheep can be found).
I found a minor typo that I thought I should point out! On page 21, where there is an abbreviated version of the character creation process, step 7 begins with, "Each player a different character..." I think it probably is meant to say "Each player chooses a different character..." like step 6 does.
Thanks for creating this scenario and making it available! n_n