The Sky Parade

Assignment Abroad

The Delphi Bureau

Destiny of a Spy

Spy of Napoleon

True Heaven

Negresco - Eine tödliche Affäre

The Prussian Cur

The Stolen Treaty

In the Diplomatic Service

The Debrief

Target Hong Kong

Dream-Spy

Inside the Lines

Smashing the Spy Ring

The Lady Has Plans

Action in Arabia

The Devil's Chaplain

Il raggio infernale

Forever Red