One lie put the nation at risk. Another might save it. 'I wanted more' DAVID GILMAN Harry Bristow: policeman, father, chauffeur, fraud. In 1988 Harry made one mistake: he took a bribe, letting a man he knew as Igor into Britain - and he's regretted it ever since. So when he recognises Igor many years later as his newly-elected MP, he knows he has to come clean. But the MP recognises him too - and Harry fears what he might do next. Peter Robinson, MP: salesman, politician, bachelor, spy. It was easy to get into Britain in 1988 as an illegal, working deep undercover, but the break-up of the Soviet Union cut Robinson off from his homeland. He's inching closer to Britain's levers of power - but now the one man who knows his secret has reappeared. With no way to contact Moscow, he must act fast to preserve his position and reap its rewards - at any cost. Manon Tyler, CIA analyst, has just boarded a plane to London - with a report on Russian illegals to read. 'Intriguing and very cleverly-plotted' ALEX GERLIS.