Lord Khreusis's stronghold was a defensive structure. This stronghold was situated at an elevated position within the Valley of the Dark Lords on Korriban, and it belonged to Lord Khreusis, a Sith Lord of the reconstituted Sith Empire during the era known as the Cold War. The mask of the ancient Sith Lord Aloysius Kallig was taken by Khreusis, but it was eventually retrieved by Kallig's descendant, a Sith apprentice at the time, following a short battle where Khreusis was defeated.