Valhalla is in ruins. Loki, the adopted son of Odin, patron of tricksters and traitors, takes the side of the triumphant heavenly hosts of God. In a world where wayward mythological deities conspire with infernal demons, his services are invaluable. Loki becomes the angelic errand boy for everything - or at least that's what the archangels think. He, however, has plans of his own. In this world and the next, there are matters that simply cannot be handled with a halo over your head.