Krein is a ruined city towards to north of the continent of Algur.
Not too long ago it was an elven city that you took your life into your hands by stepping inside. In contrast to the nearby city of Luness, any non-elf was hated with passion and even the elves saw eachother as nothing more than just another person to steal from or screw over. It was only a matter of time before the city decended into ruin.
Nowadays the buildings are deserted and falling into disrepair. Moss and ivy cover the surfaces of buildings giving them a new look. It is a ghost town. Literally. Ghosts hover above areas of city, aimlessly floating around seemingly unaware of passing travellers.