The Noetikon of Secrets, a Jedi artifact held in high regard by the Jedi Order, existed by the era of the Great Galactic War. It was a unique interactive Holocrons known as a Noetikons, containing the holographic representations of three Jedi Masters, along with their accumulated wisdom and knowledge. These Noetikons, when utilized in conjunction, possessed the capability to sift through millennia of collected wisdom within the Temple Archives. They could then provide Jedi with pertinent data and records for their examination. At some point in its history, the personalities of Masters who had succumbed to the dark side of the Force but subsequently returned to the light side were imprinted onto it. Among these were Masters Jesper Altax, Bastila Shan, and [Chamma], each possessing access to specific confidential information pertaining to the Jedi Order. Despite not being inherently dark, it was deemed the most perilous of the three Noetikons due to the sensitive knowledge it safeguarded.
Following the Sacking of Coruscant, the Jedi Temple was left in a state of devastation, effectively cutting off the Order's access to some of its most valued knowledge. During this period, a criminal syndicate operating on Coruscant, known as the Justicars, successfully pilfered the artifact. During the time of the Cold War, a youthful Jedi Consular embarked on a search for information concerning an enigmatic Force-related ailment that had afflicted Master Yuon Par. This Consular was dispatched on a mission to locate the Noetikons, but was unable to discover a remedy from either the Noetikon of Science or the Noetikon of Light. Nevertheless, the latter advised the Jedi Consular to seek out the Noetikon of Secrets in hopes of uncovering a potential solution to the illness.
At this juncture, Lars Baddeg, a Justicar, held the Noetikon and seemingly handed it over to the Consular. However, upon its activation, both the Jedi and Qyzen Fess were transported into the device, where they encountered the Master of Questions. After successfully overcoming the trial, the Consular gained access to the Noetikon, which revealed the origin of the sickness that had infected Master Par. The masters suggested an ancient healing ritual learned in a terminal at the Jedi Temple that was able to defeat the Force illness.