Who on the 13th?

[RavLandslide]

I just realized that this isn't necessarily true, as there are numerous souls that have been ferried away from the 13th. Just to throw out two different flavors of examples: Unuklhai and Rubicante.

So there's no guarantee that an Azem shard is still in the 13th. It could be somewhere else. And we've also seen that there are ways to destroy souls, so there could be other reasons why it is entirely out of circulation. Narratively I would bet against any shards of Azem's soul being destroyed due to plot armor, but it's technically within the possibility space and thus worth considering.

This is something I'm really interested in to learn about. There have been multiple voidsent who have been 100% summoned with soul and body to The Source and then died there. Does that mean that their Source counterpart could get rejoined in the Aetherial Sea?? Do they just become a "separate" person??

Please Squeenix, I need answers.