Espionage

Over the border

The Reckoning

The Yellow Typhoon

The Under-Secretary

The Intriguers

The Golden Face

Secret Service

Whatsoever a Man Soweth

The Hunchback of Westminster

At the Sign of the Sword

The Courts of the Morning

Under Two Skies

The Last Hope

Parrot & Co

The Astonishing Adventure of Jane Smith (Musaicum Vintage Mysteries)

The Border Spy; or, The Beautiful Captive of the Rebel Camp

Ronald Standish

Passers-By

Ashton-Kirk, Secret Agent

A Diplomatic Woman