The Boy on the Bench — Kathleen Pennell

In this first of three fast-paced, short stories, a mysterious woman gives Lancelot a message written in code which he must deliver to the intelligence agency. Adept at solving puzzles, Lancelot decodes it. Mr. Biggs, Head of Security, is to meet an agent at a safehouse. But is this a trap? Lancelot follows Mr. Biggs to the safehouse where they must overcome the threat of foreign agents.

The Boy on the Bench sets the stage for this four-book series wherein Lancelot and Mr. Biggs fight the enemy at home and abroad.