Board Thread:General Discussion/@comment-25176701-20160306135910/@comment-27931323-20160307164745

If the 8th was Costia, it's a bit of a dead end in the story, as she's dead. But who knows. I would prefer the 8th was alive and kicking.

In episode Thirteen, you learn that each circle represent a nightbleed that died at Lexa's Conclave.

Whoever the 8th is, they can open new storylines. Exciting times ahead. :)