So, I started reading overlord manga after watching 3 seasons of anime. so I exactly started at "Overlord Vol 10", but when I tried to reread this, the release of Nigredo and Pestonya came up again, I didn't look into that at first because I know they tried to save babies or something and got punished( watched a video). But in which volume/chapter/part is that occurs??? I can't find it.