Duel in the Jedi Temple ruins

During the Cold War between the Galactic Republic and the Sith Empire, Jedi Master Orgus Din's former apprentice and the Padawan Kira Carsen dueled the Sith Lord Tarnis in the ruins of the Jedi Temple. In 3643 BBY, during a mission to rescue the Republic scientist "Doctor Eli Tarnis" from the Black Sun criminal syndicate, Din's fomer student—now a Jedi Knight—learned that the scientist was in fact a Sith Lord, and that he had stolen the Planet Prison superweapon in an attempt to unleash it upon the Republic capital of Coruscant.

Having located the Planet Prison's heat signature in the ruins of the Jedi Temple, the Knight and Kira Carsen raced through the planet's industrial sector and fought their way through the Imperial-occupied Temple until they reached the Council chambers. There, in front of a live transmission to Tarnis's father Darth Angral and Angral's three Sith apprentices, the Knight and Carsen battled the traitorous Sith scientist and defeated him. Having watched the Knight cut down his son in front of him, Angral declared an unending war of vengeance upon the young Jedi and the Order as a whole, sparking the Desolator crisis. Using information Tarnis had transmitted to them, Angral's apprentices would seize control of the Republic's superweapon projects as part of their master's crusade against the killer of Tarnis, a conflict that would only end when the Knight defeated Angral aboard the warship Oppressor above Tython.

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