Huh, so my last guess in the comment section to the previous chapter might actually come true.
As for the cliffhanger… the only natural enemy I can think of that can conceivably be made to attack the demons on such short notice is the Mad God. Or maybe the curse, though how you even trick a curse into attacking your enemies is something I can't fathom.
It makes sense, too, since these are natural enemies we don't know much about at this point and it's time for the plot to shed light on them.