Board Thread:Speculation House/@comment-33053086-20171210163906/@comment-27082610-20171213004250

73.Anon.52 wrote: Arkantos95 wrote: The two prevailing theories are:

1) Exactly what Qrow said, they're for use on Grimm, and the reason Cinder was affected is because she used the Grimm beetle to attain her powers and may still have it inside her. she does still have it, otherwise she wouldn't have been coached by Salem to make it fear her, instead of the eyes that hurt it.(she was referring to a separate entity from Cinder and said it had been hurt by Ruby).

Or there was something else she was having to fight against. The scene was needlessly vague.