Thanks! The Kostěj is pretty evil for sure. The story here is - the Spider goddess sent her cultists to steal his heart gem. Liches guard or hide their heart gems very well, in the folklore ridiculously well in fact - he had the heart (which was a needle in this case) inside an egg, inside a duck, inside a rabbit, inside an iron chest, inside an oak. And that oak was on a very remote hard-to-get-to island.
Well, this lich wasn't so paranoid, apparently, because the cultists somehow did manage to get his heart gem. Now he's trying to get it back before the Spideress uses it to kill him.
I'll keep writing posts, sure. When I'm not this stupidly busy. -_-