8 books in series

M 87

M 87 is a 8-book series with 8 primary works first released in 1989 with contributions by Clark Darlton, Kurt Mahr, and Hans Kneifel.

Old Man
Die Kristallagenten
Magellan
Die Zeitpolizei
Paladin
Dolan-Alarm
Die Konstrukteure des Zentrums
Das Zeitkommando