He browsed in a Central Intelligence Agency report that detailed the career of a young German scientist attached to rocketry in the Second World War who had not run fast enough to escape the advancing Russian invasion, who had been carried back to the Motherland as a spoil of war and put to work, who had married a local girl and risen through proven ability and intellect to the position of director (Technical Research) at Padolsk, fifty miles south of Moscow.

And Henry Carter was taking Otto Wilhelm Guttmann's son deep into the Surrey countryside, and they were going to start in the morning, gently to prize open the can that held the boy's knowledge of his father's work.

She'd done them well, very well, little Lizzie Forsyth. They'd probably have given her a medal if anyone could think up the wording of the citation.

No talking in the car. George following his headlights and concentrating because they had now left the main roads and were into the rabbit warren of lanes that threaded the Surrey hills. Carter resting and far into his seat and with his eyes closed and his breathing even. Willi Guttmann peered through the dirty glass of the side window and out into the night's blackness.

Willi thought of a girl called Lizzie. He thought of a bar called the Pickwick where the decor was English and where she sat at a stool and bought him drinks that were warm and unfamiliar and that burned his throat, and where her friends gathered and the talk was noisy and happy.

He thought of visits to the cinema after Conference had finished in the afternoon and where moist fingers were held before the rush to be back inside the Residence doors before the last sitting for supper. He thought of the night after the girl who shared a one-bedroomed box of a flat with Lizzie had flown back to England for a job interview and he had been invited back for a toasted cheese sandwich and coffee.