"Most of the spells I know use magicka as a fuel, if you will, yes. Not all, however. The wind spells I know work differently. But those too, I can't simply use without end. Quite the opposite, in fact. If I use my wind spells to much, I over-exert myself and lose consciousness." Erica explained, looking back up to Sophia, then paused. "This glyph neutralizes magic, doesn't it? If that's the case, why is it glowing right now? I'm not casting any spells, and there isn't anyone in the room one besides us. Or do this glyps simply glow all the time?"