Jacques Futrelle

Delphi Complete Works of Jacques Futrelle (Illustrated)

49 Tales of The Thinking Machine (49 Detective Stories Featuring Professor Augustus S. F. X. Van Dusen, also known as "The Thinking Machine")

The Diamond Master

The Thinking Machine: Professor Van Dusen Investigates

The Thinking Machine

Kodnamn: Isabel

The Rivals: Tales of Sherlock Holmes' Rival Detectives (Dramatisation)

Die Denkmaschine, Folge 15: Der grinsende Gott - Teil 1 (Ungekürzt)

The Leak: From their pens to your ears, genius in every story

Detective Stories – Curious Crimes: Truth and justice by way of clues

Detective Stories – Volume 2: E M Delafield to Anna Katharine Green

Detective Stories – The Americans: Truth and justice by way of clues