The Victorian Mystery Megapack
2013
The Jacques Futrelle Megapack
2013
The World's Smartest Detectives
2016
The Thinking Machine
2014
49 Tales of The Thinking Machine (49 Detective Stories Featuring Professor Augustus S. F. X. Van Dusen, also known as "The Thinking Machine")
2013
The Diamond Master
1909
The Rivals: Tales of Sherlock Holmes’ rival detectives
2021
The Thinking Machine (Unabridged)
2025
The Rivals: Tales of Sherlock Holmes' Rival Detectives (Dramatisation)
2015
The Problem of Cell 13 (Unabridged)
2025
Detective Stories – Curious Crimes: Truth and justice by way of clues
2025
Detective Stories – Volume 2: E M Delafield to Anna Katharine Green
2025