Shadow Council purge

The Lord Emperor of the Grand Empire ordered the purge of the entire Imperial Shadow Council, as well as every member of each Councilor's support staff. While the Emperor's Elite Dark Guard eliminated two of the Shadow Councilors, who were unlikely answer to the Emperor's summons. The remaining twenty eight were summoned personally by the Emperor, who then destroyed the unsuspecting Sith Lords.

Background
At the end of the Second Imperial Civil War, a Sith fleet bearing the only survivors of the genocide ordered by the Galactic Alliance against the Sith people jumped into uncharted regions in deep space and wandered for twenty years in search of a new home. Over time, the trials and hardships that the Sith had to face during this exile, coupled with the deaths of so many of them at the hands of the Alliance and the Jedi, led them to develop a deep desire for revenge, a desire that was fueled by their leader: Darth Malphas, the last known remaining Dark Lord of the Sith of the Galactic Empire who proclaimed himself Emperor. After twenty years, the Sith fleet found and settled on the jungle world of Balstros. There, the Emperor promised his people the vengeance that they so strongly desired. He set up plans to rebuild their civilization into a new empire, a society of unrivaled efficiency which would one day rule the Galaxy. He founded the Shadow Council, a body of thirty Sith Lords to whom he entrusted the logistical leadership of the Empire. Also, he relied on the non-Force-Sensitive Imperial leaders, such as Myrim Volkin, to prepare his people for the great task that lay ahead. Volkin drafted every non-Force-user of age into the new Grand Military and they soon turned into an effective army which started to rebuild a fleet and a gigantic city to serve as their capital. Despite the dedication of the Imperial people, the task of rebuilding was too great to be accomplished in their lifetime and it would be centuries before they would be ready to finally take on the Federation and the Jedi. As the centuries went by, the Emperor, who had was immortal by use a dangerous Sith ritual, had withdrawn into isolation and left the Shadow Council to run the Empire. However, many Sith had grown disillusioned with the Emperor's war plans, believing that the Empire could be destroyed if they fought a too powerful enemy and that all their work would be wasted. They also wanted the power that the Emperor no longer seemed to use and become the true rulers of the Empire. Among these people were a dozen members of the Shadow Council, led by Darth Amaas. Amaas had discovered the truth behind who the Emperor truly was: how he had sucked all the life on the world of Wylok and blamed it on the Jedi, how he had known where Balstros was since before the Sith's exile and how he had lied to the Sith in order to turn them against the Federation and the Jedi. Amaas and her allies planned to put an end to the Emperor's madness before he led them all to war. She gathered as much support as she could for her upcoming coup.

When she wanted to recruit Darth Colak, the Emperor's own apprentice, believing he would be a powerful ally, so she took him to Wylok and told him the story of the Emperor and his deception to the Imperial people. Scourge, who also came to see the Emperor's evil nature, agreed with Amaas that he had to be killed.

The Purge
One of Darth Amaas's own soldiers seen an opportunity to be rewarded for this information, hoping to join the best soldier batilion the Elite Dark Guard. He demanded an audience with the Lord Emperor, something incredibly risky since the only ones allowed to see the Emperor without being invited were the members of the Shadow Council. The Emperor however, pleased by the soldiers boldness, granted the audience. He accepted the his information on the conspiracy within the Council, but the Emperor already knew of the conspiracy through his servants, but pleased with the soldiers loyalty and announced that he would take action and reward him a position in the Emperor's Guard.

The Emperor killed Darth Colak personally and The Dark Guard, led by the Emperor's Shield, attacked Darth Amaas and two other co-conspirators less likely to answer the Emperor's summons. Amaas herself was killed by the Emperor's bodyguard. The Sith Lords' support staffs were also killed in the purge. The rest were summoned to the Imperial Citadel and did not walk out alive. The Emperor had seen that the Council's support of the war had wavered and he could no longer count on them for support of their plans. This was his opportunity to not only get rid of them and impose new, pro-war members and also remind the Imperial people who really ruled them.

Aftermath
After the massacre of the Council, the public faces of the Empire, confusion swept over the people and this led to unprecedented unrest amongst the Emperor's subjects. Riots erupted across Clou City, leading the Emperor to take immediate action. He imposed martial law and a curfew over the planet while at the same time inisiating a lockdown which prevented any ship from landing or leaving Balstros.

The riots were eventually controlled by Imperial troops as the population was still fiercly loyal to their Emperor who saved them from being persecuted by the Jedi. The Emperor publicly claimed that the some of the Shadow Council members betrayed the Empire by working with spies from the Galactic federation, the people fearing that they have been discovered by the jedi, but the Emperor calmed their minds and that the spies were executed along with the entire council to make sure there were no more on the council were working with the enemy.

The new Shadow Council now followed the Emperor's plans for war and loyal to him out of fear, not wanting to be killed like the previous council members. The Emperor was now looking a new apprentice to replace the slain Darth Colak, now knowing that he can't trust anyone in his inner circle who are not bound to the his will, his new apprentice will be a slave like the rest of his servants, making sure that he wont to be betrayed a second time.