All of the quests starting about halfway through level thirteen require you have reputation with the druid Sun Circle faction. Once you start your druid training with Elizabeth, you need to make sure to do it everyday to get the required reputation the quickest. The first set requires you become Liked and the second set requires you become Popular. If done everyday, both will take fifteen days to complete.
Please do not complain that it takes so long. It’s something that needs to be done. And the longer you complain about it, the longer it will take you to get new story quests.
I just wanted to address this because I have been getting a lot of questions about it.
Edit: It has now been added that quests requiring more reputation than you currently have, will appear with a symbol of a heart inside of a circle. Do other quests to increase your reputation with that person’s faction to be able to access the new quest.