With the end of the age of gods, the wall of suffering fell, leaving the material plane open to Abyssaly Incursions. Feywild had merged into the main material plane and From the sea of madness you could sail to the far realms. In the easterm desert, if you had enough rations and water you could literally walk to hell. due to the weakening of boundaries, the Gates of abyss were exceptionally easy to open. And as the last god died, the Gates opened. Demons erupted from the gates, flooding the continent. Churches were corpses, killed in the sundering. Faith provided no shield. In this darkness, rose a hero.
Ador Vedel, once a wizard alcolyte, joined by his entorouge cut a bloody swath through the tide of demons, reaching the gates of abyss, sealing them shut.