After messing around a bunch and trying to think about what I was told/did with the last one I polished off the other swamp shot. And I have a story going through my head now, so that's good! Poor recruit, its going to be a rough ride for him.
Further into the swamp a large clearing, stripped of the trees used to construct the altar, the witch drags the recruit.
Signs everywhere that there is more than one witch, and far more than one missing Elder Mother.
This is where the recruit will die.
Larger version without compression can be found here. https://www.artstation.com/artwork/RY6beD