Die drei Fragezeichen is a 40-book series with 39 primary works first released in 1993 with contributions by André Minninger, Brigitte Johanna Henkel-Waidhofer, and 8 others.
1993 • 1 Reader • 96 pages
2010 • 1 Reader • 127 pages
2010 • 126 pages
2010 • 126 pages
2010 • 127 pages