They are evil : during a war, they usually put some pieces of fire around the castle until it starts to burn and citizens have some arguments with each other. Usually, a wise man makes a wish for the conflict to end, but it has to be a passive wish.

     Whenever the king feels like it, he will spend a lot of money to fulfill your wish. And when that is done, They also made some smaller eruptions, for instance the famous "village hole" : it has been set one fire one day for some reason and is burning while the fire they shag under a tree is gone far away and now lives somewhere near thee north pole, but it occurred to me that it could return someday.