Vex found that training new students on Belsavis was infinitely more useful than anything that could be done on Korriban or Dromund Kaas.
She had inherited most of the prison population from the warden she had taken them from; though there were a few newcomers now. The Empress had not exactly given her a code of ethics when it came to the Empire's worst. And so, Vex used them. She used them to practice her own magic, and now she would use them to hone the instincts of her students.
Her latest student was another noble. There seemed to be a sudden influx of those. Not that she could complain. She herself was of noble birth. Which was why she had summoned her new student to meet her. Here. On the far end of one of the many prisons she was responsible for. One of the first lessons she had ever been taught by her master was that birth meant nothing. Only one's self-determination could forge them into a true Sith. @Braden