Rasputin the Rascal Monk: Disclosing the Secret Scandal of the Betrayal of Russia by the Mock-Monk Grichka and the Consequent Ruin of the Romanoffs With Official Documents Revealed and Recorded for the First Time

The Ottoman Empire: 1300-1600

WAR TALES Boxed Set: Spy Thrillers, Action Classics & WWI Adventure Tales: The Bomb-Makers, At the Sign of the Sword, The Way to Win, The Zeppelin Destroyer, Sant of the Secret Service & Number 70, Berlin

The Great God Gold

The Last Days of the Incas

German Atrocities: A Record of Shameless Deeds

Elizabeth I

The German Spy System from Within

River of Darkness: Francisco Orellana and the Deadly First Voyage through the Amazon

The Golden Three

Six Tudor Queens: Writing a New Story

The Death-Doctor

Empires of the Sea: The Final Battle for the Mediterranean, 1521-1580

The Gay Triangle: The Romance of the First Air Adventurers

Martin Luther: The Man Who Rediscovered God and Changed the World

The Lost Million

She-Wolves: The Women Who Ruled England Before Elizabeth

Sant of the Secret Service: Some Revelations of Spies and Spying

The Purpose of the First World War: War Aims and Military Strategies