Edited sentence: The "K" in the name of the K-Bahn / K-Space / K-gate interstellar train transportation system in Philip Reeve's Railhead series comes from the "KH" acronym which stands for "Kwisatz Haderech", which is described by the first novel of the series as "the shortening of the way", and seems to be composed both from the term kefitzat haderech and the name Kwisatz Haderach of Dune.The name Kwisatz Haderach from Frank Herbert's Dune series, translated as "the Shortening of the Way", is clearly derived from the term kefitzat haderech