The Owlbeasts' Defense
The Owlbeasts' Defense is a quest for level 15-30 in Winterspring. It is step 47 of 54 in the Winterspring storyline. The quest's turn-in marker is in Winterspring at 58.0, 63.8. It rewards 4,100 experience.
Description
What a shame. Whatever Umbranse has done, he has prevented me from undoing his magic.
He is wiser than I had anticipated.
I do have a backup plan, however. I have seen owlbeasts enter and leave Mazthoril, even after Umbranse took control. Their ancient druidic magic must be capable of disabling Umbranse's. Luckily, I happen to be somewhat of an expert in their methods.
Travel south, to Dun Mandarr. You will find a chest with a dreamcatcher in it.
That will be your first step.
