[ac195]

Wow, that last back and forth between Mao and Hei... just... wow...

Spoiler:

Like people have been saying, Hei's last lines could mean two things:
1) Yin is alive and there was some epic betrayal and he wants to kill her.
2) Yin is dead. And the person that killed her is out there somewhere and Hei wants to kill her.

Oh the suspense. It really looks like it's gonna be a DtB season.