https://archive.org/details/stephan-haas-belgische-finsternis
https://archive.org/details/peter-james-du-sollst-nicht-sterben
https://archive.org/details/bohmisches-pyramidendreieck-der-waldgeist
https://archive.org/details/zdf-history-die-grossen-ratsel-der-archaologie
https://archive.org/details/die-unbekannte-seite-der-bruder-grimm-arte
https://archive.org/details/die-tochter-rappacinis-nathaniel-hawthorne
https://archive.org/details/hannah-arendt-denken-ohne-gelander