"Tales of Königsberg" is an erotic historical novel written in a fast, visual. almost cinematic without and with literary quality. Narrates the life of Joseph Haissa, neuropsychiatrist, in Germany between the wars and the rise of Nazism. Mateo Mathaus was born in Spain of german origin .He is historian ,writer ,economist and ensayist ("History of Prussia","Die Samen gives Rhododendron" ,"Lucifer in New York" ,etc..