www.goodreads.COM/book/show/69206.Kafka_y_la_mu_eca_viajera
It’s classified as fiction/historical fiction/fantasy by the Catalan author Jordi Sierra i Fabra.
It’s well known that making things up is your speciality too – all in the genre of fiction/historical fiction/fantasy,
You’d do well to find out more about Mr Kafka and his works.