Talk:Cinder Fall/@comment-45030579-20200211161247/@comment-4010415-20200211225322

Cinder and Penny both showed capability to fly at such a high speed that it produced a bang noise, possibly indicating they have both flown fast enough to break the sound barrier before, in other words flying faster than the speed of sound. Thus, if Cinder took off fast enough to break the sound barrier on her way out of the room while she burned through the ice, she could have escaped without being utterly destroyed by Ruby. The next time we see her, she is holding her Grimm arm right before she breathes fire, so we know that she did get hurt on her way out.