Traditional

Found Dead

The Year of Miracle

The Golden Bat

The Maxwell Mystery

Out of the Blue

The Dwarf's Chamber

Silver Secrets, Crimson Ties

The Mystery of the Spanish Chest

Death by Drowning

This Private Plot

The Step On The Stair

Number Seventeen

The Heart of a Mystery

The Lone Inn: A Mystery

The Wooden Hand

Where's Emily

Oscar the Detective; Or, Dudie Dunne, The Exquisite Detective

The Orange-Yellow Diamond

The Triumphs of Eugène Valmont

At the Sign of the Sphinx. Second series