Audrey and her brother, Asher, are demigods. Their quest is to survive Ragnarök. If they do manage to survive, they must rebuild the world.
If you want more of this, let me know.
What if the sun is the keeper of heaven ..or has angelic powers...moon must be the keeper of hell and a devil...yeah they are ...and being the same blood...How will they survive if an unknown creature has the green ruby the ruby that can destroy the whole world....