Board Thread:Speculation House/@comment-1292715-20181223044830/@comment-43757330-20191114235451

Tessa23 wrote: mabye summer found salem and tried to use her maiden powers on her but failed and salem figured she had transfered her powers to her daughter ruby to answer your second question. That doesn't answer my question, because as I said before, it's clear that Salem didn't know Ruby was a maiden before the fall of Beacon. Because if she did know, she would have instructed Cinder to capture her then. It would make no sense to destroy the school and send Ruby out into the world where it would be much more difficult to find her.

So the only way your theory works is if Salem didn't know Ruby was the Maiden before the fall of Beacon, but learned she was the Maiden afterward. This is why your theory doesn't work. Because there was nothing that occured that would have tipped her off. Mainly, because the only thing that drew Salem's attention to Ruby was the fact that she has silver eyes, which doesn't equate to being a Maiden.