Inquisitorius Headquarters

"Welcome home, Lord Tyranus."

- Darth Sidious

The Coruscant abandoned tower was maintained during the Clone Wars by the Dark Lord of the Sith Darth Sidious in the Works, a district on Coruscant, that served as his secret hideout. It later served as the training grounds of the Inquisitorius following the rise of the Galactic Empire.

The Clone Wars
In 22 BBY, in the conclusion of the Battle of Geonosis, which began the galaxy-wide Clone Wars, Count Dooku, secretly the Sith Lord Darth Tyranus, met with his Sith Master, Darth Sidious, in the abandoned tower on Coruscant, informing his master that the war between the Galactic Republic and the Confederacy of Independent Systems had finally begun. Sidious was pleased at the news, as he had achieved another milestone in his plan to destroy the Jedi Order and rule the galaxy, and stated that everything was going according to plan.

By the closing stages of the Clone Wars, Grand Master Yoda had embarked on a mission to Moraband in order to uncover the secrets of preserving one's consciousness after death , after Qui-Gon Jinn, a Jedi Master who died more than a decade ago , was able to communicate with Yoda, guiding him through a journey to preserve his identify after death, a journey which would lead Yoda to Moraband, the ancient homeworld of the Sith. Yoda also hoped to finally uncover the identity of the Sith Lord who had been manipulating the Jedi and had created the clone army for them.

Apparitions of Sith Warriors alerted Sidious and Dooku of Yoda's presence on Moraband, with Dooku ordered to meet with his master back on Coruscant. After arriving, Sidious began a blood ritual, using Dooku's blood and Force-bond to connect with his former Jedi Master, Yoda, while also using Force lightning and Sidious chanting Balc, a Sith language. By creating the ritual, Sidious was able to create Force Illusions on Moraband, hoping to break Yoda's will and tear the Jedi Order from within. In the following illusions, Yoda saw himself back on Coruscant in the Works with fellow Jedi Knight Anakin Skywalker, Clone Captain CT-7567, and a squad of clone troopers. Initially confused, Yoda and Skywalker arrived at the abandoned tower, in order to arrest Dooku and Sidious.

During the lightsaber duel, which saw the apparent death of Dooku by Skywalker, Yoda chased Sidious to the outside of the abandoned building, with Skywalker arriving shortly after. After dueling with Sidious, Skywalker was defeated and rendered unconscious. Sidious continued fighting Yoda, attempting to break Yoda's will by forcing him to choose between saving Skywalker, or learning Sidious' true identity and stopping all he would do. Yoda chose the former, allowing himself to be hit by Force lightning but saving Skywalker. Sidious ended the ritual, ending the Force illusions and having failed to break Yoda's will. Defeated, Sidious stated that they would need more time to defeat the Jedi.

Imperial Era
After the rise of the Galactic Empire and the destruction of the Jedi Order, Darth Sidious, publicly former Supreme Chancellor Sheev Palpatine and now Galactic Emperor, founded the Inquisitorius, a dark side organization tasked with eliminating any remaining Jedi. After the leader of the Inquisitorius, The Grand Inquisitor, briefly dueled Sidious's new Sith apprentice, Darth Vader, Sidious acquainted them, and informed Vader of the Inquisitorius, which were based in the tower. The tower had been upgraded with a landing platform, refurbished, and was guarded by the Emperor's Royal Guard. There, Lord Vader was given command of the Inquisitorius, and given the task of training them. After some time training with the inquisitors, Vader and the Grand Inquisitor were given a list of possible Jedi survivors, and tasked with tracking down Chief Librarian Jocasta Nu.

Appearances

 * Star Wars: Episode II Attack of the Clones
 * Darth Vader: Dark Lord of the Sith 6: The Chosen One, Part VI
 * Darth Vader: Dark Lord of the Sith 7: The Dying Light, Part I
 * Darth Vader: Dark Lord of the Sith 7: The Dying Light, Part I