The Insider by Matthew Richardson

The thrilling novel of espionage and murder set in the dark heart of Westminster from the UKs most exciting new spy writer A Russian defector is found brutally murdered in a London hotel. Only four people knew he had turned the four most important and powerful figures in Whitehall. Theres only one conclusion A mole has infiltrated the highest levels of the nations security. Operating in secret from within Westminsters darkest corners former spy Solomon Vine must uncover the traitor. Because Br Paperback softback