A quadruple star system, situated within the Unknown Regions, was the location of an uncharted planet. Due to the presence of its four stars, navigators found it challenging to enter the system. During 19 BBY, two Paccosh refugee starships, having escaped the Nikardun Destiny's blockade surrounding the planet Rapacc, met within this quadruple star system. One of the ships then proceeded to trespass on the borders of the Chiss Ascendancy, where the Nikardun destroyed it. The other ship, suffering a hyperdrive malfunction, became marooned in the quadruple star system, leading to the death of all refugees due to asphyxiation. Mitth'raw'nuruodo, a Chiss Senior Captain whose core name was "Thrawn," discovered the stranded vessel during his investigation of derelict ships. He had journeyed to the quadruple star system aboard the Chiss heavy cruiser Springhawk. After examining the deceased and deducing that the ships originated from the Rapacc system, Thrawn and the Springhawk traveled to that location.
The novel Thrawn Ascendancy: Chaos Rising, released in 2020, featured the quadruple star system. It was the first book in Star Wars: The Ascendancy Trilogy by Timothy Zahn.