"Words have power. Proof is in the Sith scrolls I acquired. When read, they release malevolence as a safeguard against those who would unlock their secrets. Better to leave hundreds blinded with a binding curse than surrender power to a single fool."
During the reign of EmperorPalpatine, one of his Hands, Roganda Ismaren obtained and studied ancient Sith scrolls that contained knowledge of the forgotten art of Mechu-deru. Another of Palpatine's Hands, Lumiya discovered a Sith tome on Ziost that provided detailed instructions for the construction of a Sith lightwhip. Another still of the Emperor's servants known as Blackhole also acquired Sith scrolls that he used to further his own knowledge of the dark side of the Force.