'It's a tangled story,' Thomas said, studying Saladin, trying to gauge what he understood. 'A story of prophecies – not one, but three of them, a whole sheaf.'
Joan told Saladin, sketching in brisk, efficient strokes, the story of how over a hundred and fifty years ago Robert the Wolf had travelled to Moorish Spain with his father, Orm the Viking, in search of a rogue priest.
Thomas said, 'Sihtric had come into the possession of plans for marvellous weapons. These plans were called the Codex of Aethelmaer, the weapons the Engines of God. But the Codex was compressed and enigmatic, and contained words nobody could read. So Sihtric went to Moorish Spain-'
'What? Why?' Saladin sounded outraged. 'To hand these weapons over to the caliphs?'
'The caliphs had gone by then,' Thomas said patiently. 'But, no, it was not Sihtric's intention to give his weapons to the Moors. He hoped to use the Moors' greater scholarship to help him understand the Codex and develop the weapons. And then, so his scheme seems to have gone, he would turn the weapons on his Moorish hosts.
'While he worked on these plans, as he researched the past, he came upon the second of the three prophecies – a sort of sketch of the future left by a wizard called al-Hafredi. More of that later.
'And then Robert and his father, Orm, turned up. Now Orm had a vision of his own – the third prophecy. He called it the Testament of Eadgyth.' And he repeated Eadgyth's legend of the Dove, who must be turned to the west.
'Lots of prophecies, then,' Saladin said, confused.
'Orm believed his Testament of Eadgyth warned against the use of the Engines of God. That is why, armed with the Testament, a troubled Orm travelled with his son to the distant land where Sihtric was developing his weapons.'
'And in the middle of all this,' Joan said drily, 'our ancestor Robert found time to fall in love, and implant his seed in the loins of a Moorish girl, Moraima.'
Saladin was intrigued despite himself. 'So what happened to them all?'
'It all went predictably wrong,' Thomas said, and he sighed over the foolishness of the long dead. 'There was a fire. The result of some struggle, probably. Orm and Sihtric were both killed. The prophecies and plans were lost, or so it was believed…'
Robert came home, seemingly full of disgust at what he had experienced of Moorish Spain. He became a warrior of God, eagerly taking the Cross when the Pope called the First Crusade.
Thomas said, 'But he never forgot his strange experiences, the tale of the magical engines, his father's prophecy, the future visions of al-Hafredi. In the end, driven by some sense of guilt perhaps – he may have felt it a betrayal of his father to just abandon it all – he told his own eldest son the whole story. And that son, mercifully for history and your family's fortune, was more bookish than his father, and wrote it all down for us.
'Now, by chance, not all of the Codex itself was lost. In the final struggle a scrap of it was torn away and ended up in Robert's possession. It bore strange words…' Thomas rummaged through scrolls on a low table before him for his copy of the fragment. 'Ah, here we are.' He ran his finger along a line of text.
BMQVK XESEF EBZKM BMHSM BGNSD DYEED OSMEM HPTVZ
'There were letters nearby too, preserved on the fragment, but ripped through. AD, perhaps, a V and an M – nothing else could be made out.'
Saladin read this over. 'It's in no language I ever saw.'
'Reading isn't your strong suit anyhow, son,' Joan said, mocking him.
'This is no known language,' Thomas confirmed. 'I believe this is a cipher – a code, perhaps of the type Caesar once used. There may be some key, which is lost. At any rate it was preserved, thanks to the transcription of the bookish son.'
'Now,' said Joan. 'Here's the most important thing for us, Saladin. Another of the three prophecies, the Testament of al-Hafredi, also fell by chance into Robert's hands.'
'Written on a bit of human skin,' Thomas said with a certain morbid relish.
'And this al-Hafredi has become our family's own oracle.'
'An oracle?'
'I mean that literally, Saladin. One of Robert's grandsons gave the material to Brother Thomas's house to study and interpret it for us, and so they have, in the centuries since.'
Thomas said, 'Al-Hafredi told of events to come – very broad-brush, but reliable none the less. And in particular he spoke of the advance of the Mongols. This followed the Islamic conquest of Europe, and he described it step by step.'
Saladin was trying to work this out, his face twisting. 'The Muslims have never conquered Europe.'
'True, but we can believe that the Mongols' advance would have occurred as al-Hafredi described it, whether Islam conquered or not.'
Now Saladin seemed utterly baffled. 'And Robert lived and died long before anybody had heard of the Mongols!'
'He did indeed,' Joan said. 'It wouldn't be much of a prophecy if it was the other way around, would it?'
'But how can this be? Who but God can know the future?'
'Ah,' said Thomas. 'An interesting question.'
'Which,' Joan said hastily, 'we can explore at our leisure another time. For now, Saladin, the important point is that this information has proved useful.'
Saladin nodded. 'If you know the Mongols are coming you can arm against them.'
'We tried that,' Joan said. 'But nobody wants to believe in the coming of the Mongols until they are on the doorstep.
'What we could anticipate was the plight of the refugees – those poor folks driven ahead of the Mongols' advance, in Asia, Persia, Europe. So we set up caravan stops. We supplied food and water, blankets. We even hired Saracen doctors. And we bought up the land to which they had to flee.'
'We made money out of the terrified,' Saladin said. He seemed faintly disgusted.
'We saved lives,' Joan said sternly. 'There are far more ignoble ways of making a living, Saladin. And if we had not, our family could not have survived here.'
'Think of it as a miracle,' Thomas said to Saladin. 'Everyone knows that the First Crusade's dazzling successes all depended on miracles. Perhaps God has miraculously assisted your family, for purposes yet to be revealed. Think of it that way.'
'But now,' Joan said, 'things have changed.'
'How so?'
'For one thing,' Thomas said, 'the Mongols have turned back. We must discuss the meaning of this in due course.'
Joan said, 'And then there is this letter from Subh the Moor, our distant cousin. She drops a hint that the Codex, Sihtric's engine designs, may not be lost after all…' Subh had said that a copy of the lost plans might have been buried under the floor of the mosque in Seville. 'If Robert ever knew this,' Joan said, 'he did not tell his son, or at any rate it was not written down.'
Now Saladin's face was full of a boyish wonder, pleasing to Thomas's dry heart. 'Buried under a mosque! What a story!'
'It may be just that,' Thomas warned. 'A story. But Subh has taken it seriously enough to write to you.'
Joan said, 'Subh believes that all these fragments of prophecy, in her possession and ours, may be put back together into a whole, the prophetic lore reassembled for the first time since the age of Sihtric himself.'
'And so that's why she wrote to you?' Saladin asked. 'But what does she want? We are Christian, she is Muslim. The Christians are destroying her country. Perhaps she intends to trick us, as that old priest Sihtric intended to trick the Moors.'
Thomas said, 'Even if that is her intention it need not be fulfilled. If we could get hold of these designs, if we could build the Engines of God, we could strike a devastating blow against Islam.'
Saladin studied him, curious. 'That sounds a very military ambition for a monk.'
'Not military. Evangelical.' He told them of Saint Francis of Assisi, founder of his order, whom Thomas himself had, thrillingly, met as a novice. 'The first rule Francis wrote for our order was a command for a global mission to "all peoples, races, tribes, and tongues, all nations and all men of all countries, who are and who shall be". Perhaps these Engines will enable my brothers to advance their most holy mission – even if not a life is taken with them.'