The mission to the Rapacc system was undertaken by Senior Captain Mitth'raw'nuruodo of the Chiss Ascendancy in order to investigate the point of origin of a refugee starship that had been destroyed by the Nikardun Destiny in Chiss territory. After locating a second derelict vessel, Thrawn located the vessels' origin in the Rapacc system. With the assistance of Admiral Ar'alani and the Vigilant, Thrawn managed to discreetly maneuver the heavy cruiser Springhawk into the system, boarding an abandoned mining station with the caregiver Mitth'ali'astov. The Nikardun, having noticed the Vigilants intrusion, sent a group of subjugated Paccosh to board the station. Thrawn spoke with the Paccosh, learning the identity of the Nikardun and their leader, General Yiv. The Paccosh let Thrawn leave without reporting him to the Nikardun, allowing Thrawn to pursue further investigation into Nikardun activities.
While aboard the asteroid mining station, Thrawn and Thalias met the Paccosh leader Uingali foar Marocsaa. Uingali gave Thrawn a double ring depicting a chimaera. The chimaera would eventually come to be Thrawn's personal insignia and the name of his flagship when Thrawn was an officer of the Galactic Empire.
Four and a half months later, during the Nikardun campaigns; Thrawn, Thalias, and the Springhawk returned to the Rapacc system, searching for remnants of Nikardun forces. There, Thrawn returned the Marocsaa subclan ring to Uingali, and also encountered the leader of a group of refugees known only as the Magys.
Four and a half months later, during the Nikardun campaigns; Thrawn, Thalias, and the Springhawk returned to the Rapacc system, searching for remnants of Nikardun forces. There, Thrawn returned the Marocsaa subclan ring to Uingali, and also encountered the leader of a group of refugees known only as the Magys.