Lord Khreusis's stronghold was a fortification, located high on the Valley of the Dark Lords on Korriban, owned by a Sith Lord of the Sith Empire, Lord Khreusis, during the Cold War. He stole the ancient Sith Lord Aloysius Kallig's mask but it was later recovered by Kallig's descendant, who was still a Sith apprentice, after defeating Khreusis in a brief duel.