Knights of the Nine is a compilation that will include all the other
Oblivion downloadable content released to date: Horse Armor, The Orrery,
Wizard's Tower, Vile Lair, Thieves Den, Mehrunes' Razor, and Spell Tomes.
Knights of the Nine features an all-new faction and quests for noble
characters and answers many of the questions surrounding the Ayleid ruins
found throughout Oblivion. Players can join a new faction and found their
own order of holy knights â€“ leading them into battle against a sorcerer-king
and his demonic minions while exploring massive dungeons and searching for
legendary relics â€“ the holy armor and weapons of the Divine Crusader.