In the village with the goblins I found a book and got a quest to forge a weapon with some parts of a tree from the underdark.
I found the tree and took the part of the tree.
Now the quest marker for this quest follows me on the map and the quest entry says: "You found the tree, now you must take this item."

I have the item and I have no idea what to do with it.

groovy Prof. Dr. Dr. Mad S. Tist groovy

World leading expert of artificial stupidity.
Because there are too many people who work on artificial intelligence already :hihi: