Please remove this spell, it's incredibly irritating, or add some method of removing it via quest loot. The monster that casts it casts no other spell and it's completely debilitating and impossible to cure without a level 5 cleric or an amount of gold that is currently impossible to earn.
Honestly I like this fact that they curse you. It makes sure you don't go out after dark unless you are either very brave, very lucky, or very well equipped. It adds edge to the server for the time being.
hmm
I am sure you can clear up curse problems pretty easy. I saw a way IG today actually which didn't seem hard at all.
It turned out this was an unintended bug. Curse was not supposed to be cast by them.
I like that night is scary, but not being able to do anything at all at night could be irritating.