Correction twelve people my bad From overlord volume 1 page 27: The four-colored crystal lamps on the ceiling were a type of monster, and the moment an enemy entered their range, they would summon high-ranking elementals of earth, water, wind, and fire, in addition to bombarding them with area-of-effect attack magic. If these crystal lamps all attacked at once, the firepower they unleashed could easily defeat two parties of level one hundred Players, which would be roughly twelve people.