George Smiley is one of the most brilliantly realised characters in British fiction. Bespectacled, tubby, eternally middle-aged, and deceptively ordinary, he has a mind like a steel trap and is said to possess 'the cunning of Satan and the conscience of a virgin'. Miss Ailsa Brimley is in a quandary. She's received a peculiar letter from Mrs Stella Rode, saying that she fears her husband – an assistant master at Carne School - is trying to kill her. Reluctant to go to the police, Miss Brimley calls upon her old wartime colleague, George Smiley.

This novel, set in London in the late 1950s, finds George Smiley engaged in the humdrum job of security vetting. But when a Foreign Office civil servant commits suicide after an apparently unproblematic interview, Smiley is baffled. Refusing to believe that Fennan shot himself soon after making a cup of cocoa and asking the exchange to telephone him in the morning, Smiley decides to investigate – only to uncover a murderous conspiracy.

George Smiley has become chief of the battered British Secret Service. The betrayals of a Soviet double agent have riddled the spy network, and Smiley wants revenge. He chooses his weapon: Jerry Westerby, "The Honourable Schoolboy", a passionate lover, and a seasoned, reckless secret agent. Westerby is pointed east, to Hong Kong. So begins the terrifying game.

George Smiley was summoned from his dubious retirement by two seemingly unconnected events - an old woman in Paris is promised the return of a daughter she will never see, and a handover is to take place on a steamer in Hamburg.

Mr George Smiley is small, podgy, and at best, middle-aged. He is disillusioned, wrestles with idleness, and has been deserted by his beautiful wife. He is also compassionate, ruthless, and a senior British intelligence officer in short-lived retirement from the Circus, the British Secret Service organisation situated in London. But Moscow centre has infiltrated a mole into the Circus, and it's more than likely the perpetrator is Karla, Smiley's old adversary and his opposite number in Moscow.

The Berlin Wall is down, the Cold War is over, but the world's second oldest profession is very much alive. Smiley accepts an invitation to dine with the eager young men and women of the Circus' latest intake; and over coffee and brandy, by flickering firelight, he beguilingly offers them his personal thoughts on espionage past, present, and future. In doing so, he prompts one of his former Circus colleagues into a searching examination of his own eventful secret life.

Peter Guillam, staunch colleague and disciple of George Smiley of the British Secret Service, is living out his old age on the family farmstead in Brittany when a letter summons him to London. The reason? His Cold War past has come back to claim him. Intelligence operations that were once the toast of secret London and involved such characters as Alec Leamas, Jim Prideaux, George Smiley and Peter Guillam himself are to be scrutinised under disturbing criteria by a generation with no memory of the Cold War.

It is the third summer of perestroika. Niki Landau, philanderer and travelling rep, attends the first Moscow audio fair and is asked by beautiful young Katya to take a parcel back to England. It’s addressed to Barley Blair, jazz-player and drinker, and contains information vital to the defence of the West. But times and heroes are changing. And Barley Blair is a man who makes his own rules of engagement.

Magnus Pym, counsellor at the British Embassy in Vienna, has suddenly vanished, believed defected. The chase is on for a missing husband, a devoted father, and a life-time secret agent. Pym's life, it is revealed, is entirely made up of secrets. The race is on to find the perfect spy.

The British Embassy in Bonn is up in arms. Her Majesty's financially troubled government is seeking admission to Europe's Common Market just as anti-British factions are rising to power in Germany. Rioters are demanding reunification, and the last thing the Crown can afford is a scandal. Then Leo Harting - an embassy nobody - goes missing with a case full of confidential files. London sends Alan Turner to control the damage, but he soon realises that neither side really wants Leo found - alive.

Harry Pendel is the charismatic proprietor of Pendel and Braithwaite Limitada of Panama, through whose doors everyone who is anyone in Central America passes. Andrew Osnard, mysterious and fleshy, is a spy. His secret mission is two-pronged: to keep a watchful eye on the political manoeuvrings leading up to the American handover of the Panama Canal on 31st December 1999; and to secure for himself the immense private fortune that has until now churlishly eluded him.

'Out of the secret world I once knew, I have tried to make a theatre for the larger worlds we inhabit. First comes the imagining, then the search for reality. Then back to the imagining, and to the desk where I'm sitting now.' The Pigeon Tunnel, John le Carré's memoir and his first work of nonfiction, is a thrilling journey into the worlds of his 'secret sharers' - the men and women who inspired some of his most enthralling novels - and a testament to the author's extraordinary engagement with the last half century.

Julian Lawndsley has renounced his high-flying job in the City for a simpler life running a bookshop in a small English seaside town. But only a couple of months into his new career, Julian's evening is disrupted by a visitor. Edward, a Polish émigré living in Silverview, the big house on the edge of town, seems to know a lot about Julian's family and is rather too interested in the inner workings of his modest new enterprise. When a letter turns up at the door of a spy chief in London warning him of a dangerous leak, the investigations lead him to this quiet town by the sea.

A half-starved young Russian man is smuggled into Hamburg at dead of night. He has an improbable amount of cash secreted in a purse around his neck. He is a devout Muslim. Or is he? He says his name is Issa.... Annabel, an idealistic young German civil-rights lawyer, determines to save Issa from deportation. In pursuit of his mysterious past, she confronts the incongruous Tommy Brue, the 60-year-old scion of Brue Frères, a failing British bank based in Hamburg.

The night manager is Jonathan, a veteran of clandestine operations. In flight from a failed marriage and his own past, he has taken refuge in the luxury hotel trade. Yet he finds no escape from his demons. Driven by a desire for atonement and by an inherited patriotism, Jonathan allows himself to be recruited as a British secret agent with a mission to expose the murderer of the woman he himself betrayed. His odyssey takes him across Britain and Canada to the Caribbean and the jungles of Panama. But there are more treacherous jungles still in Whitehall and Washington.