Duel on Vohai

The Duel on Voahi took place in 18 BBY between Darth Vader and Emperor's Hand Sa Cuis, sent by his master Palpatine to kill Vader. However, the duel was in fact a test for Vader, Palpatine's true Sith apprentice. Vader confronted Cuis in the courtyard of Arkanian Microtechnologies after killing several assassins sent by Cuis. Though Cuis put up a furious fight, he was defeated by Vader.

Appearances

 * In His Image