Complex sentence: In the prologue, Markaris says that the book was originally published in German, and he had no intention of publishing it in Greek, feeling that what would interest foreigners would not be of interest to Greeks.
Split into simpler sentences: In the prologue, Markaris says that the book was originally published in German, and he had no intention of publishing it in Greek. He felt that what would interest foreigners would not be of interest to Greeks.