The End vs undoing

The End

noun
  • Used to indicate the termination of something. 

  • Used traditionally at the end of a story or film. 

  • The end of the world, particularly in a religious sense. 

undoing

noun
  • Ruin; defeat, (also) that which causes defeat or ruin. 

  • Annulment; reversal 

  • The act of loosening or unfastening 

How often have the words The End and undoing occurred in a corpus of books? (source: Google Ngram Viewer )