The Lost Ambassador; Or, The Search For The Missing Delora: An Intriguing Tale of International Espionage and Romance

The Tempting of Tavernake: Deception, Betrayal, and Redemption in Early 20th-Century Society

Whodunit Murder Mysteries: 15 Books in One Edition: The Imperfect Crime, Murder at Monte Carlo, The Avenger, The Cinema Murder, Michel's Evil Deeds...

The Complete Works: 109 Novels & 200+ Short Stories

The Cinema Murder

Advice, Ltd.: Intrigue and Secrets: A Classic Tale of Mystery and Suspense

Passers-By: A Vintage Thriller of Espionage and Betrayal

Nobody's Man

Gabriel Samara

The Vanished Messenger

THE GREAT IMPERSONATION (Spy Thriller)

A Maker of History: A Thrilling Tale of Intrigue and Power in Early 20th-Century Europe

The Profiteers: Greed, Deceit, and Political Turmoil: A Tale of Espionage and Conspiracy

The Greatest Oppenheim Spy Thrillers: Tales of Intrigue, Deception & Suspense: The Spy Paramount, The Great Impersonation, The Double Traitor, The Vanished Messenger, The Pawns Court, The Box With Broken Seals...

The Seven Conundrums: Unraveling the Enigmatic Mysteries of Deceit and Espionage

Harvey Garrard's Crime

The Peer and the Woman: A Tale of Love, Betrayal, and Society's Secrets in Turn of the Century Britain

Peter Ruff and the Double Four: A Riveting Tale of Deception and Intrigue in Early 20th Century Britain

The Zeppelin's Passenger: A Thrilling Tale of Espionage and Intrigue in World War I

The Evil Shepherd