Raven's Secret Portal - RWBY Volume 9 / 10 Theory

At the end of volume 9 Ruby was given a vision about her mother and Raven heading off for presumably Summer's final mission. This has lead to a lot of questions about what possibly could have happened and has renewed a theory about Raven I've had for quite a while. So there's no better time than now to finally discuss it. Raven's secret portal. Twitter:   / youallwrite