Disguised as a pacifist, Hannay travels from London to Glasgow to the Scottish Highlands and Islands in his search, which eventually ends in a spectacular climax above the battlefields of Europe.

When Richard Hayes, a gifted polymath and cryptographer, was drafted by Irish intelligence services to track the movements of a prolific Nazi spy, Hermann Görtz, it set in motion one of the most remarkable episodes in Irish history. What followed was a high-stakes game of cat and mouse that would wind its way through the capital and its suburbs, reverberate through the corridors of power, test the sympathies of those in high society,and even expand...

Treachery begins at home Back in London after a gruelling operation in Paris, Liz Carlyle has been posted to MI5's counter-espionage desk. Her bosses hope the new position will give her some breathing space, but they haven't counted on the fallout from Putin's incursions into the Ukraine. Discovering that an elusive Russian spy has entered the UK, Liz needs to track him down before he completes his fatal mission - and plunges Britain back into the...