To the south of the priory, the ground sloped steeply down to the river. The bank on that side was rocky, unsuitable for loading barges and rafts, so all the wharves were on the more accessible south side, in the suburb of Newtown. The quiet north side bloomed at this time of year with shrubbery and wildflowers. Merthin and Caris sat on a low bluff overlooking the water.
The river was swollen with rain. It moved faster than it used to, Merthin noticed, and he could see why: the channel was narrower than formerly. That was because of the development of the riverside. When he was a child, most of the south bank had been a wide, muddy beach with a swampy field beyond. The river then had flowed at a stately pace, and as a boy he had floated on his back from one side to the other. But the new wharves, protected from flooding by stone walls, squeezed the same quantity of water into a smaller funnel, through which it hurried as if eager to get past the bridge. Beyond the bridge, the river widened and slowed around Leper Island.
'I've done something terrible,' Merthin said to Caris.
Unfortunately, she looked particularly lovely today. She wore a dark red linen dress, and her skin seemed to glow with vitality. She had been angry at the trial of Crazy Nell, but now she just seemed worried, and that gave her a vulnerable look that tugged at Merthin's heart. She must have noticed how he had been unable to meet her eye all week. But what he had to tell her was probably worse than anything she had imagined.
He had spoken to no one about this since the row with Griselda, Elfric, and Alice. No one even knew that his door had been destroyed. He was longing to unburden himself, but he had held back. He did not want to talk to his parents: his mother would be judgmental and his father would just tell him to be a man. He might have talked to Ralph, but there had been a coolness between them since the fight with Wulfric: Merthin thought Ralph had behaved like a bully, and Ralph knew it.
He dreaded telling Caris the truth. For a moment he asked himself why. It was not that he was afraid of what she would do. She might be scornful - she was good at that - but she could not say anything worse than the things he said to himself constantly.
What he truly feared, he realized, was hurting her. He could bear her anger: it was her pain he could not face.
She said: 'Do you still love me?'
He was not expecting the question, but he answered without hesitation. 'Yes.'
'And I love you. Anything else is just a problem we can solve together.'
He wished she were right. He wished it so badly that tears came to his eyes. He looked away so that she would not see. A mob of people was moving onto the bridge, following a slow-moving cart, and he realized this must be Crazy Nell being whipped through the town on her way to Gallows Cross in Newtown. The bridge was already crowded with departing stallholders and their carts, and the traffic was almost at a standstill.
'What's the matter?' Caris said. 'Are you crying?'
'I lay with Griselda,' Merthin said abruptly.
Caris's mouth dropped open. 'Griselda?' she said unbelievingly.
'I'm so ashamed.'
'I thought it must be Elizabeth Clerk.'
'She's too proud to offer herself.'
Caris's reaction to that surprised him. 'Oh, so you would have done it with her, too, if she'd suggested it?'
'That's not what I meant!'
'Griselda! Dear Saint Mary, I thought I was worth more than that.'
'You are.'
'Lupa,' she said, using the Latin word for a whore.
'I don't even like her. I hated it.'
'Is that supposed to make me feel better? Are you saying you wouldn't be so sorry if you'd enjoyed it?'
'No!' Merthin was dismayed. Caris seemed determined to misinterpret everything he said.
'Whatever got into you?'
'She was crying.'
'Oh, for God's sake! Do you do that to every girl you see crying?'
'Of course not! I was just trying to explain to you how it happened even though I really didn't want it to.'
Her scorn got worse with everything he said. 'Don't talk rubbish,' she said. 'If you hadn't wanted it to happen, it wouldn't have.'
'Listen to me, please,' he said frustratedly. 'She asked me, and I said no. Then she cried, and I put my arm around her to comfort her, then - '
'Oh, spare me the sickening details - I don't want to know.'
He began to feel resentful. He knew he had done wrong, and he expected her to be angry, but her contempt stung. 'All right,' he said, and he shut up.
But silence was not what she wanted. She stared at him in dissatisfaction, then said: 'What else?'
He shrugged. 'What's the point in my speaking? You just pour scorn on everything I say.'
'I don't want to listen to pathetic excuses. But there's something you haven't told me - I can feel it.'
He sighed. 'She's pregnant.'
Caris's reaction surprised him again. All the anger left her. Her face, until now taut with indignation, seemed to collapse. Only sadness remained. 'A baby,' she said. 'Griselda is going to have your baby.'
'It may not happen,' he said. 'Sometimes...'
Caris shook her head. 'Griselda is a healthy girl, well fed. There's no reason she should miscarry.'
'Not that I'd wish it,' he said, though he was not quite sure that was true.
'But what will you do?' she said. 'It will be your child. You will love it, even if you hate its mother.'
'I've got to marry her.'
Caris gasped. 'Marry! But that would be forever.'
'I've fathered a child, so I should take care of it.'
'But to spend your whole life with Griselda!'
'I know.'
'You don't have to,' she said decisively. 'Think. Elizabeth Clerk's father didn't marry her mother.'
'He was a bishop.'
'There's Maud Roberts, in Slaughterhouse Ditch - she has three children, and everyone knows the father is Edward Butcher.'
'He's already married, and has four other children with his wife.'
'I'm saying they don't always force people to marry. You could just carry on as you are.'
'No, I couldn't. Elfric would throw me out.'
She looked thoughtful. 'So, you've already talked to Elfric?'
'Talked?' Merthin touched his bruised cheek. 'I thought he was going to kill me.'
'And his wife - my sister?'
'She screamed at me.'
'So she knows.'
'Yes. She said I have to marry Griselda. She never wanted me to be with you, anyway. I don't know why.'
Caris muttered: 'She wanted you for herself.'
That was news to Merthin. It seemed unlikely that the haughty Alice would be attracted to a lowly apprentice. 'I never saw any sign of that.'
'Only because you never looked at her. That's what made her so cross. She married Elfric in frustration. You broke my sister's heart - and now you're breaking mine.'
Merthin looked away. He barely recognized this picture of himself as a heartbreaker. How had things gone so wrong? Caris went quiet. Merthin stared moodily along the river to the bridge.
The crowd had come to a standstill, he saw. A heavy cart loaded with woolsacks was stuck at the southern end, probably with a broken wheel. The cart pulling Nell had stopped, unable to pass. The crowd was swarming around both carts, and some people had climbed onto the woolsacks for a better view. Earl Roland was also trying to leave. He was at the town end of the bridge, on horseback, with his entourage; but even they were having trouble getting the citizens to give way. Merthin spotted his brother, Ralph, on his horse, chestnut colored with a black mane and tail. Prior Anthony, who had evidently come to see the earl off, stood wringing his hands with anxiety while Roland's men forced their horses into the mob, trying in vain to clear a passage.
Merthin's intuition rang an alarm. Something was badly wrong, he felt sure, though at first he did not know what. He looked more closely at the bridge. He had noticed, on Monday, that the massive oak beams stretching from one piling to another across the length of the bridge were showing cracks on the upstream side; and that the beams had been strengthened with iron braces nailed across the cracks. Merthin had not been involved in this job, which was why he had not previously looked hard at the work. On Monday he had wondered why the beams were cracking. The weakness was not halfway between the uprights, as he would have expected if the timbers had simply deteriorated over time. Rather, the cracks were near the central pier, where the strain should have been less.
He had not thought about it since Monday - there was too much else on his mind - but now an explanation occurred to him. It was almost as if that central pier was not supporting the beams, but dragging them down. That would mean that something had undermined the foundation beneath the pier - and, as soon as that thought occurred to him, he realized how it could have happened. It must be the faster flow of the river, scouring the river bed from under the pier.
He remembered walking barefoot on a sandy beach, as a child, and noticing that when he stood at the sea's edge, letting the water wash over his feet, the outgoing waves would suck the sand from under his toes. That kind of phenomenon had always fascinated him.
If he was right, the central pier, with nothing underneath to support it, was now hanging from the bridge - hence the cracks. Elfric's iron braces had not helped; in fact, they might have worsened the problem, by making it impossible for the bridge to settle slowly into a new, stable position.
Merthin guessed that the other pier of the pair - on the farther, downstream side of the bridge - was still grounded. The current surely spent most of its force on the upstream pier, and attacked the second of the pair with reduced violence. Only one pier was affected; and it seemed that the rest of the structure was knitted together strongly enough for the entire bridge to stay upright - as long as it was not subjected to extraordinary strain.
But the cracks seemed wider today than on Monday. And it was not difficult to guess why. Hundreds of people were on the bridge, a much greater load than it normally took; and there was a heavily laden wool cart, with twenty or thirty people sitting on the sacks of wool to add to the burden.
Fear gripped Merthin's heart. He did not think the bridge could withstand that level of strain for long.
He was vaguely aware that Caris was speaking, but her meaning did not penetrate his thoughts until she raised her voice and said: 'You're not even listening!'
'There's going to be a terrible accident,' he said.
'What do you mean?'
'We have to get everyone off the bridge.'
'Are you mad? They're all tormenting Crazy Nell. Even Earl Roland can't get them to move. They're not going to listen to you.'
'I think it could collapse.'
'Oh, look!' said Caris, pointing. 'Can you see someone running along the road from the forest, approaching the south end of the bridge?'
Merthin wondered what that had to do with anything, but he followed her pointing finger. Sure enough, he saw the figure of a young woman running, her hair flying.
Caris said: 'It looks like Gwenda.'
Behind her, in hot pursuit, was a man in a yellow tunic.