“ A place where an architect has built a temple/shrine to an evil god inside the walls of another building, a castle or another place of importance.”
“ As they travel they notice a horrible rotten smell. As they travel it gets stronger and stronger forcing them to cover their noses and mouth less they choke on the horrible smell. Rotting animal carcass that has been ripped apart and tracks all over, covered in maggots.”
“ If a ghost possesses someone that had a different personality to them in life, the possessed body will slowly rot.”