Board Thread:Speculation House/@comment-25266931-20161111003308/@comment-25936766-20161115120904

Of course, there must be a side effect to putting esential Fire/Lightning/Ice/Stone inside you.

Mmmm.....Salem has a lot of Gravity Dust nearby. If we assume she's (used to be) human, those lines (veins?) in her face could have been caused by that. Though this doesn't explain her control over Grimm, or how she learned to speak Jellyfish.