Two questions about emet have been bugging me since I finished EW and I genuinely cant find any answers. I was wondering if the lore forum could help me

1. How did he and lahabrea escape the sundering intact?
now we know what happened for hydaelyn to split the worlds it seemed a good time to rexamine this question. Only I can't find anything new given how zodiark was split

So have I missed something? I'm expecting pandaemonium might explain lahabrea's escape but that still leaves emet selch's escape.

2. What was the supposed way that fandaniel mentioned that he could have found with regards to zenos?