Professor Prexo's cybersurgery, located in South District Seven of Milvayne City on the planet Milvayne, was both his residence and place of business. In the year 3 ABY, Doctor Chelli Aphra, accompanied by the assassin droid 0-0-0, journeyed to this location. They were aided by Vulaada Klam, a scavenger, and her Qaberworm named Gurtyl. Upon arrival, they discovered the professor was not there, but instead faced a group from the Milvayne Authority along with some stormtroopers belonging to the Imperial garrison stationed on the planet.