To begin with, we can go to Tormund to start the first of the following sidequests. The second sidequest can be found over in New Wyrnshire. And the third sidequest can be done if you fast travel to the village of Iden in the Fiorwoods. Two of them give you a new character for ...
You might need to open ten treasure chests in the Fiorwoods to clear one block, or take down Tak the Yak in Rohlan Fields to clear another. If you manage to string together a long chain of cleared blocks, you'll earn very useful items, including Grimoire Shards....