Board Thread:Speculation House/@comment-4830106-20131110184853/@comment-13616152-20131121071144

Angren Túrë wrote: 71.126.238.227 wrote: Just remember: Ruby and Yang are now officially blood-related. If she's Ruby's mom, she's Yang's mom too. I don't know about you guys, but as much as I hate the idea, it makes a lot of sense. Yang has fire-powers, Cinder has fire-powers. For the sake of argument, we don't know to what degree they're blood-related. They could be half-sisters, with Yang and Ruby each having a different mom.

And it's very possible that Ruby never het her biological mother. Hell she might not even know her face!