The Oblivion War is a secret war to banish the Old Ones to Oblivion. By erasing mortal awareness of the Old Ones, they will no longer be anchored to the mortal world and will be locked away in Oblivion. It is for that reason the Venatori struggle to keep the War a secret. There are also groups-like the Stygian Sisterhood-who want the Old Ones there as a route to power. This war has been going on for at least five-thousand years.