Ch187, a quick but loaded spoiler
So, according to this post, Ada and Baldo use pigs to supply the porter (and, by extension, the Aurora Society) with blood. Layla tries to butt-in, but Ada shoos her away. Baldo follows the porter with the intention to shoot, if anything happens. Sure enough, the porter takes the blood to two cloaked figures in the woods, and they test the blood to make sure it’s correct. They determine it’s not even human blood, and so Baldo shoots them. Then Layla shows up and stabs him. Seems she had been following him, and he didn’t have a clue. And she already knows who sent him.












