The Day of Temptation: Intrigue and Espionage in Pre-World War I Europe

The Secrets of Potsdam: A Startling Exposure of the Inner Life of the Courts of the Kaiser and Crown-Prince

The Stolen Statesman: Being the Story of a Hushed Up Mystery

The Red Room: Intrigue and Espionage in a Europe on the Brink of War

The Invasion: Espionage and Intrigue in Early 20th Century England

The White Lie: Betrayal and Deception: A Tale of Espionage and Intrigue

The Bomb-Makers: Being Some Curious Records Concerning the Craft and Cunning of Theodore Drost, an Enemy Alien in London, Together with Certain Revelations Regarding His Daughter Ella

The Intriguers: A Thrilling Tale of Deception, Betrayal, and International Espionage

The Bond of Black: An Intriguing Tale of Espionage and International Conspiracies

Number 70, Berlin: A Story of Britain's Peril

The Under-Secretary: Intrigue and Espionage in Edwardian England: A Political Thriller

Devil's Dice: Espionage, Intrigue, and Deception in Early 20th-Century Europe

Tracked by Wireless: A Thrilling Tale of Espionage and Wireless Technology in Early 20th Century Europe

WAR TALES Boxed Set: Spy Thrillers, Action Classics & WWI Adventure Tales

The Lost Million: Espionage, Conspiracy, and Intrigue in Early 20th-Century Europe

The WW1 Stories -Collected Novels

WILLIAM LE QUEUX Ultimate Collection: 100+ Spy Thrillers, Detective Mysteries, Adventure Classics, Historical Novels, War Stories & Crime Tales (Illustrated)

Britain's Deadly Peril: Espionage, Conspiracy, and Danger in Early 20th Century Britain

The Collected Spy Thrillers

The Broken Thread: Intrigue and Deception in a World of Espionage