XoXaan's tomb was a Sith mausoleum located on Korriban, within the planet's famed Valley of the Dark Lords. It was the burial chamber of XoXaan, one of the Dark Jedi that conquered Korriban and became the first of the Sith Lords. The tomb was discovered in 25 ABY by then-bounty hunter A'Sharad Hett, who heard the voice of XoXaan calling to his inner darkness. Hett entered the tomb, wherein he found XoXaan's holocron, from which he learned the ways of the Sith; when he left, he was a new man—Darth Krayt, Dark Lord of the Sith.