Board Thread:Speculation House/@comment-68.186.83.101-20130601225528/@comment-10390252-20130603210327

68.186.83.101 wrote: Yang and Ruby are sisters, Yang's surname is Long, so is it safe to assume that Ruby's surname is also Long?

Actually, this theory falls apart immediately because Monty has explicitly said that Yang and Ruby are not sisters.

Purely FWIW,  I think that Ruby's surname is 'Rose' but, as it hasn't been revealed yet, that's only an informed guess based on the inscription on the tombstone at the start of the Red Trailer. The fact that her surname hasn't been revealed yet suggests that it contains a major plot point ("You are the chosen one, Ruby!") It might also explain why Ruby is so important that the Big Bad sent a full company strength of Beowolves after her.