Latest – a revenge thriller set in Samurai Japan.

The Thinkersphere Series – crime in a world without privacy.
Hashtag   Atcode

The Derring-Do Club Adventures – putting their best foot forward, without showing an ankle, since 1896.
The Derring-Do Club and the Empire of the Dead   The Derring-Do Club and the Year of the Chrononauts   The Derring-Do Club and the Invasion of the Grey  The Derring-Do Club in Death on the Suez

Stand-alone fiction and non-fiction
Crossing the Bridge (front cover)   I, Phone (front cover)   The Other Christmas Carol   Punk Publishing