User blog comment:MDGeistMD02/Which Witch is Which?/@comment-3242762-20131123115209

All the witches in the sewers, bar the one talking to Delilah require incapacitation in some way, (I guess you could just run off) but I mean they don't vanish without trace, they engage Daud in a fight, so I think it has little to do with those witches, also I've been attacked on the Undine in low chaos (I'd killed nobody at that point of the Brigmore Witches, at all) so I don't think it has anything to do with choas.

The run where I DID NOT get attacked I had incapacitated both the Scout near the Undine and the witch talking to Delilah, I'm certain it has a lot to do with those two.

I'm away from the PS3 at the moment, when I'm home this evening I'll run a few tests if this hasn't already been figured out.