Umbra (ERS)

"This planet is alive with the Force, a lot like Mortis, there are Five Others like it. The information on this planet, will lead to the others, and to the Seals that stop our burden from affecting this Galaxy and then the Universe."

- Darth Thiole commenting on the power of the planet. Umbra was a massive world that was artificially created through the Force and appeared in the Empire Reborn Series, it was a private world where the Council Masters (the New Sith Council Members) met and resided when not on missions, these Masters are not only the strongest Force Sensitives in the Galaxy but also trained the recent generations of New Sith that are capable enough at their own machinations to further the Order.