“I am your mother.”
She then adds, “I am Sith as well, or least trained as such but denied any of the trappings of power or influence that comes with it. I was a hidden sword and now I have broken my chains. I would have come to you sooner but my own ill-thought plans had you bound to a master not worthy of allegiance.”
“I should have known you would be resourceful enough to deduce the truth. Your are my son, after all.”