Overview

When British war hero-turned-adventurer Hugh ""Bulldog"" Drummond sails to Havana to answer an anonymous summons, he expects a routine intelligence errand. Instead, a Royal Navy officer is gunned down on the pier before Drummond can even disembark-clutching a sealed envelope marked STRICTLY CONFIDENTIAL - CALYPSO FILE. From the smoky bars of Old Havana to sugar-refinery ruins, from high-stakes casino tables to jungle strongholds near Santiago, Drummond and the sharp-witted Lucía Ramos follow a trail of assassins, coded ledgers and sabotaged freighters. At the centre of the web lurks Mathilde Vianne - the legendary Crimson Widow, a master spy once thought dead, now orchestrating an arms-smuggling conspiracy designed to fracture the British Empire from within. Facing ambushes on the Malecón, a brutal trap in a derelict theatre, and traitors in London's own corridors of power, Drummond must survive a vendetta that spans oceans-before ""Operation Calypso"" sparks a war the world isn't ready for. A 30-chapter international thriller steeped in 1930s atmosphere - perfect for fans of classic Bulldog Drummond adventures, high-stakes espionage and noir-tinted historical intrigue.

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Martin Swan is a British author and digital creator known for reviving the golden age of pulp fiction through fast-paced thrillers, historical mysteries, and sharp-tongued detective tales. With a deep love for classic storytelling and vintage heroes, Martin writes with cinematic flair, breathing new life into icons like Sherlock Holmes and Bulldog Drummond for modern readers. When he's not crafting globe-trotting espionage or tongue-in-cheek cozy mysteries, Martin curates digital content for indie authors and builds faceless income systems using AI and storytelling. He lives somewhere between a foggy London alleyway and a Havana speakeasy-depending on what chapter he's writing.

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