Something Carved on the Pillar
It is likely that there are more pillars with someone's records. Look at the pillar. You would be able to read the writings on the pillar even if it's dark if you have the crystals that illuminates a mysterious ray.
||무언가가 새겨진 기둥
You can't check the carvings even with the crystal that illuminates a mysterious ray. It seems that you would need the luminous oil from the monsters nearby.