i personally thought "auditor's hell" was just the island hank was sent to Acquire Violence, not the entire realm. and i think there are way too many skeletons for them to have been bodies the auditor absorbed
i think the red entities are-- this is going to get ridiculous-- representations/manifestations/gods of reality, the realm they were in, or something else, that need to be together for stability in the world
that paragraph is mostly based on one thing; that the first entity was trying to pull the second one towards them at the beginning, not attack them
they see each other and go :D, try to meet, but the second one is pulled away, and the first flies into a rage
this doesn't take into account the multiple red things falling in the background, one of which was the first entity, though they might also be part of reality and all of them falling indicates the whole thing is falling apart?
as for the beam, i have no idea