bright spot vs peril

bright spot

noun
  • A good part of something that is otherwise fairly bad or unpleasant. 

  • Used other than figuratively or idiomatically: see bright, spot. 

peril

noun
  • Something that causes, contains, or presents danger. 

  • A situation of serious and immediate danger. 

  • An event which causes a loss, or the risk of a specific such event. 

verb
  • To cause to be in danger; to imperil; to risk. 

How often have the words bright spot and peril occurred in a corpus of books? (source: Google Ngram Viewer )