‘Oh, yes,’ Ferron said. ‘Why, it was a dream of Pedro, elder brother of Henry the Navigator, half a century ago. And there are strong commercial reasons to try it. Some say that if the Muslims block the way to the east - well, then, on a round world, perhaps a route can be found to the far east, by sailing west.’

‘And that is the Dove’s dream,’ Grace said.

Ferron sneered. ‘You can just see this little man, the jumped-up Genoan, his poorly educated mind struggling to make sense of the tavern legends he so credulously devours. But he is devout, I’ll give him that. It’s not just trade he’s after. He’s said to have concocted a scheme to contact the Mongol Khan, if he still reigns, and to persuade him to join an attack on the Islamic states from the east. Our clothier’s son dreams of liberating Jerusalem!’

‘All right,’ Grace said. ‘But so what? You say men have had this sort of dream before. What makes this “Dove” different?’

Ferron said, ‘For one thing, the plausibility of his case. The seed of his dream may have been travellers’ tales, but he has been trying, in his dogged, uneducated way, to assemble a rational case, based on the testimony of the ancients and other arcana. Second, he has added a gloss of a divine mission, which will appeal to our monarchs. You could even see it as fitting in with the greater project of the Hidden One to rule the whole world; after all you must discover a land before you can conquer it. Third, there is his sheer determination. Anybody who has met him says this of him. He is obsessed where those who went before him were not, and he may succeed in his dream of going west merely because of that.’

‘Or perhaps,’ James said, ‘he just wants to get out from under the shadow of his father-in-law. That would be human.’

‘Well, if he wants to impress his wife he’s sadly too late,’ Ferron said. ‘She died last year, leaving our Dove with a chick, a son. Perhaps that death released our dreamer from the damp prison of Porto Santo. Within months he had travelled to Lisbon and petitioned the Portuguese court to fund his westward expedition. In return he wanted a share of the profits, a hereditary nobility and to be named governor of any lands he found.’

Grace smiled. ‘This little man thinks big.’

‘You can’t blame him for that. Joao turned him down. He left Portugal - although that may not be unconnected to the fact that his wife’s family were implicated in a murky little plot to assassinate the King. And so, early this year, our Dove came to Spain. He’s here now, in a little port called Palos. And as I say we’ve learned that he intends to come to Cordoba to present his case to the monarchs.’