- Author: Michael Hrdinka Author Record # 291780
- Language: German
- Used These Alternate Names: Frederic Collins, Frank deLorca, Brian Elliot, Robert Lamont
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Omnibus
- In der Todeszone (2019) [O] with Gisela Bulla and Robert Lory and Michel Parry and Thomas Ziegler [only as by Frederic Collins and Nelly Hamilton and Robert Lory and Michel Parry and Thomas Ziegler]
- Der Schrecken von Dartmoor (1975) [only as by Frank deLorca]
- Kreaturen der Nacht (1975) [only as by Brian Elliot]
- Der Fluch des Pharao (1976) [only as by Frederic Collins]
- Der Höllenschlund (1976) [only as by Robert Lamont]
- Das Kastell der Toten (1976) [only as by Robert Lamont]
- Hata, die Hexe aus dem Sumpf (1976) [only as by Robert Lamont]
- Die Insel des Zyklopen (1977) [only as by Robert Lamont]
- Die Falle im Todesschloß (1977) [only as by Robert Lamont]
- Luziferus, der Bote des Bösen (1978) [only as by Brian Elliot]
- Der Teufelsdiener (1979) [only as by Frank deLorca]
- Professor Zamorra Universe
- Professor Zamorra
- 57 Der Höllenschlund (1976) [only as by Robert Lamont]
- 60 Das Kastell der Toten (1976) [only as by Robert Lamont]
- 65 Hata, die Hexe aus dem Sumpf (1976) [only as by Robert Lamont]
- 73 Die Ruine des Hexers (1977) [only as by Robert Lamont]
- 82 Die Falle im Todesschloß (1977) [only as by Robert Lamont]
- Professor Zamorra
- Der Schrecken von Dartmoor (1975) [only as by Frank deLorca]
- Kreaturen der Nacht (1975) [only as by Brian Elliot]
- Der Fluch des Pharao (1976) [only as by Frederic Collins]
- Luziferus, der Bote des Bösen (1978) [only as by Brian Elliot]
- Der Teufelsdiener (1979) [only as by Frank deLorca]