‘I imagine the frog doesn’t take that lying down?’

‘As you said. The frog is no gentleman. He hops all the way to the palace, rats on the princess to the King, who tells her that a princess must always keep her word.’

‘A princess shouldn’t have to be told.’

‘It might surprise you to know that holds good for common folk too.’ Then, ‘She isn’t happy about it but she doesn’t have much choice, so she lets him eat off her plate, but then she flounces off to bed without him.’

‘She learns her lesson hard, this princess. Does the frog quit?’

‘What do you think?’

‘I think she’s going to be sharing her pillow with the frog.’

‘Right. It takes him hours to hop all the way up the stairs, find her room, but he gets there in the end and once more reminds her of her promise. Finally, accepting that she’s beaten, the princess puts him on her pillow and even forces herself to kiss him goodnight.’

‘I can relate to this frog, but can this story have a happy ending?’

‘That rather depends on your point of view. When the princess wakes up next morning the frog has turned into a handsome prince.’

His brows rose a fraction.

‘That might take a bit of explaining.’

Diana, whose view of the scene had been fixed in childhood by a picture book image of said handsome prince, fully clothed in princely trappings, standing beside the princess’s bed as she woke, suddenly saw a very different reality and, quite stupidly, blushed.

‘Yes, well,’ she said quickly, ‘it’s that whole wicked-witch-cursing-the-handsome-prince thing. The princess had to have her arm twisted to breaking-point, but she did what was needed to break the spell. Da-da-de-da,’ she sang the wedding march. ‘And they all lived happily ever after.’

‘You mean that now he’s not a warty frog, but her equal, she marries him?’

‘I did warn you. The girl is as shallow as an August puddle. It’s why the prince married her that beats me.’