Jacques Futrelle

Elusive Isabel

The Diamond Master

The Diamond Master

The Jacques Futrelle Megapack

The Problem of Cell 13

The Thinking Machine: Professor Van Dusen Investigates

The Lady Logician's Casebook: Five Classic Mysteries Adapted from Jacques Futrelle's "The Thinking Machine" Series

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