Board Thread:Speculation House/@comment-14138255-20130802021723/@comment-10390252-20131211105229

FWIW, I like the thought of Cinder being Summer's identical twin sister. As well as playing to the 'dark twin' trope with a literal twist, it would lead to a wonderful conflict for Ruby if the main villain is nearly-indistinguishable from her late (and idolised) mother.