Der Verräter
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Overview:
- Title: Der Verräter
- Author: Freder van Holk
- Year: 1950
- Publisher: Bielmannen
- Price: DM 0.50
- Pages: 64
- Binding: digest
- Type: Chapter Book
- Title Reference: Der Verräter
- Notes:
- By #12 sales were down and Paul Alfred Müller took over the series from this story onwards. Some 20-30 stories had already been pre-produced and Müller rewrote / reused portions of Helmut K. Schmidt's original #13 manuscript.
- The cover artist is credited in the copyright section.
- All data taken from P. A. Müller's biography and the 2008 Materialienband.
- {{OCLC|85092110}} and {{DNB|550463976}} are for the entire series, not for the individual publication.