base camp vs haunt

base camp

noun
  • An encampment used temporarily for storing supplies and preparing for a larger activity, such as mountain climbing or hunting. 

haunt

noun
  • A place at which one is regularly found; a habitation or hangout. 

  • A ghost. 

  • A lair or feeding place of animals. 

verb
  • To stalk; to follow. 

  • To accustom; habituate; make accustomed to. 

  • To inhabit or to visit frequently (most often used in reference to ghosts). 

  • To make uneasy, restless. 

  • To practise; to devote oneself to. 

  • To persist in staying or visiting. 

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