An unidentified Alsakan priest once warned Jedi Knight Ussej Padric Bac and Jedi Grandmaster Damien Nightblade about the Apocalypse, a galaxy-ending event that began thousands of years later in 41 BBY when the Dark Lord became the leader of the Order of the Sith Lords. After Bac had become the Shaman of the Order of the Whills and Nightblade had fallen to the dark side of the Force and become Darth Plagueis, Bac reminded Plagueis about the Alsakan priest and warned that Plagueis' death would mark the beginning of the Apocalypse. Despite the warning, Plagueis allowed his apprentice to kill him hours later and the Apocalypse began.