Vorhof der Unterwelt

From Author Wars - https://authorwars.com/publications/vorhof-der-unterwelt-677524.html

Overview:

Title: Vorhof der Unterwelt
Author: Freder van Holk
Year: 2017
ISBN-10: 9783945416181
Publisher: Mohlberg
Price: €29.90
Pages: 300
Binding: Trade Paperback
Type: Omnibus
Title Reference: Vorhof der Unterwelt
Notes:
- A reprint of two Borgsmüller Sun Koh novels:
  - #31 Die steinerne Ellipse (1960)
  - #32 Vorhof der Unterwelt (1960)
- All data taken from the publisher's website and from D-NB. Month deduced from the surrounding publications.