Wrathe was not supposed to awaken from his tomb so early. It wasn't part of the Grim King's plan. Ten thousand years early and finding a world under constant war. Wrathe knew that this world has forgotten the terror his people wrought on the world. He would remind them once more.
Hey so this is extremely large scale. It will be very long to get to a conclusion of the story. If you want to experience this journey I'm happy to have you.