‘But a Beamish Eight costs only four hundred,’ Mr Cullen blurted.

Zoë licked her fingers, sticky from a leaking apple tart, and said: ‘Yes, I know, but we never had four hundred to spare.’

Mr Cullen, feeling himself being washed out to sea, sought some terra firma.

‘I oughtn’t to be eating your food this way,’ he said. ‘They’ll have plenty for me back at the hotel. I really ought to go back.’

‘Oh, don’t go,’ Zoë said with a simplicity so genuine that it penetrated even Mr Cullen’s defences. ‘There is enough for a platoon.’

So to Grant’s pleasure in more ways than one, Mr Cullen stayed. And Zoë, unaware that she was providing the United States with a revised view of the genus English Aristocrat, ate like a hungry schoolboy and talked in her gentle voice to the stranger as if she had known him all her life. By the apple tart stage, Mr Cullen had ceased to be on his guard. By the time that they were handing round the chocolates that Laura had included he had surrendered unconditionally.

They sat together in the spring sunshine, full-fed and content. Zoë lying back against the grassy bank with her feet crossed and her hands behind her head, her eyes closed against the sun. Grant with his mind busy with B Seven, and the material that Tad Cullen had brought him. Mr Cullen himself perched on a rock looking down the river to the green civilised strath where the moors ended and the fields began.

‘It’s a fine little country, this,’ he said. ‘I like it. If you ever decide to fight for your freedom, count me in.’

‘Freedom?’ said Zoë, opening her eyes. ‘Freedom from whom or what?’

‘From England, of course.’