Star Wars knights of the Old Republic: Revan's apprentice.

The overthrow of the Republic is complete. The Mandalorian forces have been smashed, and the Jedi Council nearly decimated, and the rest of the Order all but destroyed. Absolute power rests in the iron fist of Darth Vitiate, the former Senator now Emperor Vitiate. But more remains to be done. Pockets of Resistance in the galaxy must be defeated and missing Jedi accounted for. These crucial tasks fall to the Emperor's ruthless enforcers, Darth Revan and Darth Malak. In turn, Darth Revan has groomed a lethal female apprentice entrusted with a top secret mission to comb the galaxy and dispatch the last of her Master's enemies thereby punctuating the dark side's victory with the Jedi's doom.