Board Thread:Speculation House/@comment-24523863-20140901030628/@comment-3146930-20140901031511

The mind control thing has been mentioned a few times. However it seems much more likely that she was threatening him. Cinder has fire-Dust in her outfit and her hand was right against his face. If she wanted to burn him alive at that instant, she probably could have.

However back in Episode 1, Cinder makes a few Glyph rings in order to completely burn away the debris Glynda was controlling. Later Pyrrha calls Glyphs a type of Semblance.