Hi!
These are some fantasy authors ive read or heard of..... feel free to remind me of more!

  In The Lion, the Witch, and the Wardrobe, C.S. Lewis wrote a magnificent passage illustrating this.  Aslan, the lion, is a figure of Christ.  One of the children, Edmond, had betrayed Aslan and endangered his siblings by selling out to the wicked witch, the Queen of Narnia, who had seduced him by offering him a taste of turkis delight.  By the terms of the law, that betrayal merited Edmond's death.  There was only one way to save Edmond:  Aslan must be delivered into the hands of the queen, which had been the real objective in her scheme all along. 
  Quietly and without resistance, the more powerful Aslan submits to the queen's demands.  After he was humiliated, he was bound to a table of stone, which represented the law, and killed.  Edmond's sisters, Lucy and Susan, were totally despondent as they grieved over their friend.  Suddenly, Aslan appeared before them, triumphant over death.  "What does it all mean?" they wondered. 
  Lewis, at this point in the story, makes this brilliant observation.



That incantation that Lewis speaks of is the prior will of God, that He who knew no sin would willingly lay down His life to pay the price of sin. The Word of God, as promised, was fulfilled.