asylum vs danger

asylum

noun
  • The protection, physical and legal, afforded by such a place (as, for example, for political refugees). 

  • A place of safety or refuge. 

danger

noun
  • An instance or cause of likely harm. 

  • The stop indication of a signal (usually in the phrase "at danger"). 

  • Exposure to likely harm; peril. 

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