The Counts Chauffeur (Unabridged): optional

The Stretton Street Affair (Unabridged)

The Czar's Spy

The Four Faces

The Secret of the Fox Hunter

The Sign of Silence

Hushed Up! A Mystery of London

As We Forgive Them

The Tickencote Treasure

The House of Whispers

Whither Thou Goest

The Great White Queen

An Eye For An Eye

The House of Evil

The Stretton Street Affair

The Invasion

An Eye For An Eye

The Secret of Dr. Vaux's Intrigue

The Secret of the Black Bag

The Secret of the Smoked Spectacles