SNOWOWL'S PROFILE

I am kinda tired of working on big projects for the time being, so I have come up with a little bit of a fun project I can work on. Basically it goes like this: I make a set of short stories into a series of games.
Now obviously the stories is going to need at least a common topic. I am really fascinated by nordic mythology, especially trolls, so I choose this topic.

Nordic trolls are really different from how they are depicted in movies and games today, by the way, read this:
http://fantasycreatureencyclopedia.blogspot.se/2008/05/troll-norse-mythology.html

Now to my problem: I can't find that many stories, except for a few classics, like "The changeling".
Obviously not all the stories would work as games, either.
I am going to try to write a few stories myself, but I would much prefer someones else's work.
So I ask this, does anyone know of a collection of relatively short stories with nordic mythology in them, especially with trolls and/or other magic creatures? (I am aware of "Bland Tomtar och Troll, but can't find them anywhere).
I don't mind stories not professionally written, heck I wouldn't mind if someone here wrote them.