Board Thread:Spoilers!/@comment-26385535-20160127061149/@comment-32012760-20160411183123

Here's my theory:  What if Ruby is in the Underworld because Mulan can't go a second time? Maybe living people can only go to the Underworld once and when Mulan and Aurora rescued Phillip  (they never did explain how he came back) they exchanged the Wraith's medallion for his soul and they can't ever go there again until they die or forfeit their souls to save another's. I have no idea if there's a "rule" of that kind or not, just thought maybe it would explain Mulan not being there and Ruby helping to save their friend Dorothy. I don't know it's probably nothing like that! I'm never right about anything they come up with ; )