User blog comment:CrimsonWarden/Disappearing bodies phenomenon/@comment-29196789-20160827223602

It's a good idea but I think there's too many mundane exceptions for 'killed by player = disappear' to work as a rule. Regarding the bigger things,

Body parts disappearing were the effect of healing magic. When something was cut off and the main body would heal, the body part would dematerialize and probably be used in the rematerialization of the limb. The body part wouldn't disappear if it were mutilated or otherwise changed or transformed, and the rematerialized limb would be made from pure magic or something.

I'm not sure if the disappearing bodies of the Sunlight Scripture and Clem/Khaj are related. Clem and Khaj could have simply been resurrected, their bodies rematerializing at the site of the ritual. This seems to be what Ainz thinks, considering his line of questioning with Evileye over resurrection magic regarding the proximity of the caster. Still, their hypothetical resurrection could be an incorrect assumption and they may be dead for good, which would definitely necessitate a unifying theory for the two disappearances.

My personal thoughts when reading it were that the disappearing bodies of the Sunlight Scripture were directly related to the spell that killed them after 3 questions under Charm. I really have no idea what caused this in the world, though, whether it was something to do with trace amounts of player blood, something cast by the original 6 Gods as protection, something cast on members of the scriptures to prevent interrogation, or something else.