It was chosen by Grand Admiral Thrawn as the center of his efforts in the Unknown Regions to conquer territory for the Galactic Empire and defend it from threats from the galactic fringes or from outside the galaxy. It contained a fully equipped command center, library, and a cloning facility in which Thrawn had kept a clone of himself in stasis. The complex also held an advanced database. It also had a holomap of the galaxy to show sector's that were underneath Thrawn's control.
Surrounded by various turbolaser batteries, and a hangar bay equipped with a wing of starfighters, the Hand of Thrawn was highly secured from an attack. Guarded heavily by a garrison of Chiss soldiers, infiltration inside the complex would be pointless.
By 19 ABY, it had become the leading fortress of the Empire of the Hand. Its garrison, comprised for the most part of Chiss troops, was commanded by Imperial officer Voss Parck. Soontir Fel was also part of the Hand of Thrawn's complement. When Mara Jade disappeared on a mission to track down the source of clones and mysterious starfighters which had recently become active, Luke Skywalker and R2-D2 followed her. Joining with some of the native Qom Jha and Qom Qae, they infiltrated the compound. In order to prevent the Hand of Thrawn from turning itself over to Bastion and the Empire, Mara Jade used a beckon call to drive her ship, Jade's Fire, into the compound, damaging the main hangar and all remaining ships. Luke and Mara then reentered the compound, where they discovered Thrawn's secret cloning chamber. While battling two sentry droids, the entire chamber flooded, but they were able to escape by forcing Thrawn's cloning cylinder to explode, resulting in the water draining and allowing them to escape. After escaping, Luke discovered that R2-D2 also managed to download an unaltered copy of the Caamas Document.
Following Luke Skywalker and Mara Jade's intervention, the Hand of Thrawn was attacked and looted by the Cavrilhu Pirates who were involved in some skirmishes with the Jedi and had followed them to Nirauan. Due to the destruction of their defenses by the Jedi, the personnel of the base were forced to evacuate. Fearing that the pirates could have obtained information about the secret Chiss installations in the ruins, Commander Stent went to the Syndic Mitth'raw'nuruodo training academy in the Rata Nebula to prevent a pirate attack.
- Specter of the Past (First appearance)
- Vision of the Future
- Red Sky, Blue Flame"—Star Wars Gamer 7 (Mentioned only) "
- Survivor's Quest
- "Star Wars Publications Timeline"—Star Wars Insider 23
- The Essential Chronology
- The Official Star Wars Fact File 5 (THR2, Grand Admiral Thrawn)
- The Official Star Wars Fact File 102 (CAA2, Caamas Document)
- (Indirect mention only)
- The New Essential Chronology
- The Complete Star Wars Encyclopedia
- The Essential Reader's Companion