Board Thread:Speculation House/@comment-35979206-20181021114251/@comment-33287020-20181022140622

There's actually an in-story reason as to why people are theorizing skull grandma has silver eyes. They point blank said longtime questions would be answered this volume. People have theorized about another, older SEW teaching Ruby for awhile now, since Ozpin can't be fucked to do it, so when an old woman with conspicuously-covered eyes pops up, and ends up traveling with RWBY in an environment that would lend itself to grimm attacks, it's really not a stretch to think she might potentially be one. Especially since, even if the mask wasn't originally supposed to hide Raven's maiden ability, the concept of covering one's eyes to hide a rare and sought-after power has been introduced into the series.