The Guardian of the Mounds was a title given to inhabitants of the planet Alderaan and marked their efforts against the threat posed by the Killiks. During the Cold War, Rylan Stallos of House Thul tasked an official of the Sith Empire with poisoning Killik hives in order to lead the insectoids attacking the other Alderaanian houses. This forced them to take their responsibility in culling the Killik numbers and Stallos commented to the Sith representative that they would had made a fine royal Guardian of the Mounds.