Insider

Brought to you by Penguin.

A thrilling novel of espionage and murder in the dark heart of Westminster, from the UK''s 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.

There''s only one conclusion - a mole has infiltrated the highest levels of the nation''s secu...