Board Thread:Lore Discussion/@comment-92.232.245.173-20140202220612/@comment-121511-20140207232548

I always imagined that Blighttown wasn't always named as such, and that before the flames began to fade, it was just a slum for the poor and less fortunate. It's located at the base of Anor Londo's great walls, and that fact coupled with the shoddy wooden walkways and housing seems to suggest that it was built and populated by those who weren't allowed entrance into the great city. I imagine that after the fall of civilization, some disease spread there, poisoning the swamp (if it wasn't toxic beforehand) and turning the residents into the infested ghouls/barbarians.

On a tangential note, I always thought the Blood Mosquitoes and Crag Spiders to be related, as they have a similar aesthetic and the latter have near-vestigial wings. Judging by appearance and their demonic nature, I've thought that they might perhaps be the spawn of Quelaag or some unrelated demonic spider(s).