The Adeptus Custodes are a force of individual warriors, each a bastion in their own right and a sentinel of unmatched capability and singular purpose created to counter any possible threat -- Human, alien or Daemonic. These warriors have stood in the presence of the immortal Emperor of Mankind since before the time of the Unification Wars. For ten thousand Terran years and more, the Custodians have stood watch over their lord and master, serving as the Emperor's personal heralds and praetorian bodyguard.