Fünf Freunde Folgeserie is a 4-book series with 4 primary works first released in 1971 with contributions by Claude Voilier, Anthea Bell, and Enid Blyton.
1971 • 1 Reader • 140 pages • 4
1972 • 1 Reader • 140 pages • 4
1975 • 1 Reader • 139 pages • 4
1977 • 1 Reader • 127 pages • 4