The Kharvashark Ruins existed on the southern portion of the planet called Vrant Tarnum, which was located in the Stygmarn system. A significant period of time prior to the High Republic Era, individuals belonging to the Elders of the Path concealed one half of an old artifact within a cavern situated on the perimeter of the ruins. Subsequently, the Elder named Tromak divulged the relic's whereabouts to Krix Kamerat with the intention of safeguarding this knowledge; however, Kamerat ultimately shared this information with Marchion Ro, the Eye of the Nihil.
After obtaining the aforementioned artifact, Ro proceeded to construct a Nihil base at the ruins, assigning Kamerat as its leader. While investigating the death of Loden Greatstorm, Emerick Caphtor, a Jedi investigator, and a contingent of troopers engaged in combat with remaining Nihil forces present at the ruins. Caphtor was able to connect inscriptions found at the ruins to a children's poem that he remembered from his youth, which added complexity to the ongoing investigation.