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The Joseph Muller Collection
Grace Isabel Colbron & Augusta Groner
Joseph Muller, Secret Service detective of the Imperial Austrian police, is one of the great experts in his profession.
Muller is a small, slight, humble, plain-looking and naturally retiring man, of indefinite age and plain disposition.
He is like a blood hound on a trail and that instinct is stronger than any other in his mentality.
Here you can purchase a collection 5 of his best and most engaging cases written by Grace Colbron and Augusta Groner.
Joseph Muller eBooks
The Case of the Lamp that Went Out
The Case of the Golden Bullet
The Case of the Registered Letter
The Case of the Pool of Blood in the Pastor's Study
The Case of the Pocket Diary found in the Snow