With numerous new documents that were never published before, this
comprehensive study highlights the widely forgotten and neglected
twin-camp character of the former Mauthausen Concentration Camp complex
with key installations in St. Georgen and Gusen. It supplements the
conventional narrative of the history of Concentration Camp Mauthausen
with new and previously unpublished information from local sources,
survivors, liberators, and archives all around the world. It focuses
especially on SS infrastructure at St. Georgen and Gusen that is
underrepresented in the history of Concentration Camp Mauthausen and the
Holocaust in general. The study also supplements the history of World
War II and the SS´s strategic involvement in German war production
during the final phase of the war with new and previously unpublished
information. Thus the study gives special emphasize on joint-venture
projects of the Waffen-SS with Steyr-Daimler-Puch AG and Messerschmitt
GmbH Regensburg that resulted in the realization of a top secret and
most modern underground plant for the serial production of Me-262 jet
planes in St. Georgen that might have influenced the course of World War
II.