Board Thread:Online Discussion/@comment-24.95.61.139-20140123215450/@comment-24918737-20140211211151

Aza 17 wrote: Lukaman2 wrote: don't know,didn't ever try,but i think yes you cant start the quest untill you retrieve the horn of jorgen windcaller, you need the letter from the cultists and they only show up once youve done this.

Actually they show up after your first visit to High Hrothgar, not after retrieving the horn.