These Fatalistic Gods

The world as it was known has ended. The land is waste, polluted by nuclear fallout, mutated by magical residue. Everyone in the Old World is dead- everyone but me. I remember it all; and if you like, I'll tell you a story of what happened to it. Of the children that killed the earth and the wizards that killed humanity. Well, Little Miss No-Maj? Are you sitting comfortably?