Yeah, he does nice paintings. I've seen a lot of his work, and I've even been in the house he used to live in. Anyway, this picture always fascinated me:

http://www.munchforlaget.no/galleri/..._hvit_hest.htm

It's a sea monster that turned into a white horse and lured people to ride on it, and then it would jump into the lake and drown the person on top.