The Case of the Pool of Blood in the Pastor's Study: A Joseph Muller Mystery Auguste Groner 7 chapters 1 hr 59 min Listen now ↗ — The Case of the Pool of Blood in the Pastor's Study: A Joseph Muller Mystery
The Mystery of the Locked Room: A Joseph Muller Detective Story Auguste Groner 23 chapters 7 hr 26 min Listen now ↗ — The Mystery of the Locked Room: A Joseph Muller Detective Story
Lady in Blue: A Joseph Muller Mystery Auguste Groner 20 chapters 5 hr 50 min Listen now ↗ — Lady in Blue: A Joseph Muller Mystery
The Case of the Lamp That Went Out: A Joseph Muller Mystery Auguste Groner 14 chapters 3 hr 45 min Listen now ↗ — The Case of the Lamp That Went Out: A Joseph Muller Mystery
