On a night-time ride from copenhagen to frankfurt Driest tumbled and fell just before Friedberg. Therefore he got transferred to an orthopedic specialist in basel. Due to his injury at the left shoulder the doctors forbid him to paint and sketch. As a consequence he dictated his story “Die Verrohung des Franz Blum” (publisher Expedtitionen) on audio tape. The book got published by Rowohlt and filmed by Reinhard Hauff.