So in Marvel there was the place that was called The Place of Knowledge, or something like that. There were two entities there that were called something like Before and After who were the keepers of everyone's stories. I can't remember it all exactly (and I've probably got most of the names wrong) but I'll bet
@Sun Wukong will know. I suspect that is where they are heading, or some variant of that, which would open the door to The One Above All.