Brother Peter made notes, Luca listened intently, fearing more and more that some terrible wrong had happened in this town and that he had missed it. Remorsefully, he remembered coming into the town at dusk, after riding all day with Isolde, quite entranced by her, noticing nothing about the gateway, the harbour or the inn. He remembered saying goodnight to her on the stairs of the inn, thinking of nothing but the closeness of her and that if she had leaned a little nearer they could have kissed. He thought of the arrival of the children on the quayside and how he had looked up to see the two beautiful girls at their window as they had called down that hundreds of children were on the road; he had heard what they had said, but what he had seen was the two exquisite young women. He remembered warning Ishraq that she should not wear her Arab dress and how he had told her that her skin was the colour of heather honey. He knew now that he had been instantly and completely persuaded by Johann, that he had been determined to join the crusade to Jerusalem, hoping selfishly that he would see his parents again. Distracted, filled with sinful desire, obsessed with his own hopes and fears, Luca blamed himself for being quite blind to the events unfolding before his very eyes, and letting this town be washed through by the flood.

He should have been a Noah, he thought – he should have known that the flood was coming and prepared a safe haven. If he had been a true inquirer, and not a lovesick boy, he would not have been distracted and perhaps he would have seen something: a movement of the sea, the largeness of the moon – something that could have warned him of the disaster that was coming. Luca sat very still, listening intently, filled with shame at his own failure.

‘What about the young ladies?’ one of the midwives called from the body of the church. ‘You are asking about things that we know, that we all know. What about the young ladies and what they were doing?’

At once there was a murmur of suspicion and anxiety in the echoing chancel. ‘Call them. And have them answer to you.’

Wearily Luca rose to his feet and looked into the shadowy body of the church. ‘Lady Isolde, Mistress Ishraq!’ he called. He could see the girls coming slowly from where they had been kneeling at the back of the church and then the quiet patter of their leather slippers as they came up the stone-flagged aisle and hesitated. Solemnly, he waved them into the choir stalls opposite his seat, so that they should take their place like the other witnesses. He looked at them, and he knew he was looking at them as if they were strangers to him: strangers filled with the incomprehensible powers of women.

‘And the child,’ someone insisted. ‘The child who escaped the wave.’