Board Thread:Speculation House/@comment-27276671-20160214220907/@comment-10390252-20160216125814

Purely FWIW, there is a fan idea for Volume 4 (and possibly 5) flying around that I quite like.

Basically, Emerald has cut ties with Cinder out of disgust of what she did to tens of thousands of people in Vale and because, quite frankly, she's terrified of being around such a black-hearted being with the powers of a demigoddess. She's taken to surviving by petty theft and looting in the ruins of Vale (back to her starting point, in other words) and has encountered Blake.

Now, Blake doesn't know what Ruby sort of suspects (that Emerald was somehow responsible for what happened to Yang, Penny and Pyrrha), so she's willing to team up with another 'orphaned' trainee Huntress to avoid Adam, build up her skill and then take him down. Emerald figures that Blake has no chance to find, let alone get to face the White Fang leader, so she figures she could be worse off than having someone to watch her back as they try to survive in the post-Cinder ruins.

Along  the way...? Well, you can't hang out with a heroic personality like Blake without it raising questions in even the most cynical mind.