Kafkaesque vs shadowy

Kafkaesque

adj
  • Marked by surreal distortion and often a sense of looming danger. 

  • Marked by a senseless, disorienting, often menacing complexity. 

  • In the manner of something written by Franz Kafka. 

shadowy

adj
  • Vague, dim, unclear, faint of an image. 

  • Dark, obscure. 

  • In shadow; darkened by shadows. 

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