Board Thread:Speculation House/@comment-27687864-20160127193452/@comment-14909251-20160521142854

We do know that Cinder has some connection with the Grimm based on the flashback episode where she stole some of Amber's power. It would be understandable if Ruby was able to freeze her as well as the Dragon. The image of the tower does seem to show a person frozen at the top in same stance Cinder took. Qrow not mentioning it is a bit odd I admit, though he may very well have noticed or wanted to spare her. Plus, they may not entirely understand why Cinder was frozen as well and so telling her about it without knowing was something they didn't consider a good idea.