Talk:Cinder Fall/@comment-24463952-20180131034836/@comment-2602:306:3494:D090:4925:C075:CEBC:1FB-20180201221818

I think the arm was an extension of the grimm she used to steal the maiden powers from Amber. Salem's treatment made it stronger, allowing it to merge with her arm and heal her injuries once she dominated it. If she hadn't, the grimm could've killed her from inside once it started to get a stronger hold on her.