'I thank you for leading me,' I told her. We started across the field together, and had just reached the trail when I heard a shout behind us and turned; the young woman continued on without looking back.

Peredur and Tallaght emerged from the wood, leading my horse. They rode to where I stood waiting. 'The trail led from the glade,' explained Tallaght. 'I cannot understand how we missed it before.'

'Nor can I,' added Peredur.

'Well,' I replied, 'at least we will not have to search for it on our return.' Taking the reins from Tallaght, I said, 'You can go ahead, if you like. I will walk with our guide.' At this, both warriors exchanged uneasy glances, but I ignored their odd behaviour and quickly joined the young woman on the trail.

We walked towards the gate – a steady climb as the hill rose steeply at its summit – and the young woman kept her eyes on the stronghold and said nothing. Approaching the gate, we were hailed by a man brandishing a spear. 'Greetings!' he called, hastening forward to meet us. 'I give you good day!'

I gave the gateman my greeting, whereupon he looked at the girl beside me and stopped in his tracks, losing control of his spear, which fell to the ground. He bent to retrieve it and stood staring at us, his mouth agape like a beached fish.

'We come looking for the caer of Urien Rheged,' I told the man. 'Have we found it?'

'That you have, lord,' he replied slowly; he seemed to have difficulty taking his eyes from the girl. For her part, she regarded the man without expression; indeed, she seemed to look through him to the settlement beyond. 'But if it is himself you are wanting, I must tell you he is not here,' the man said. His attention shifted to the two warriors coming up behind me. 'Is it far you have ridden today?'

'We have come from the Pendragon,' I answered. 'Our camp is no farther than a short day's ride.'

'The Pendragon! – here?' cried the man. 'But our lord is gone to join him in the south.' His eyes, fearful now, shifted quickly to me. 'Has Urien been killed? I must tell Hwyl – I must tell him at once.'

He made to dash away then and there, but I held him. 'Stay, friend. Calm yourself. All will be explained in good time.' I smiled to assure him we meant no harm. 'Ah, but it is too hot to be standing here in the sun. Perhaps there is a shady spot within.' I gestured towards the fortress. 'My men and I could use a drink – and the horses as well.'

'Forgive me, lord,' spluttered the man. 'I am a hound for yapping on so. Come with me, and I will lead you to Hwyl – he holds the throne while Lord Urien is gone.'

The man turned on his heel and rushed off. I took a step or two, and noticed that the young woman was not following. Indeed, she paid not the least heed to the conversation that had just taken place, but was still gazing at the fortress as if entranced by the sight.

Stepping once more beside her, I touched her arm and said, 'We are going up now. Perhaps you could lead us.'

She gave a shudder, as with cold, and came to herself once more. She looked at me, nodded, and proceeded to follow the gateman. I fell into step behind her, and the two warriors came after. We passed through the gates and into the foreyard of the caer. It was a large fortification, well provided with numerous storehouses and dwellings. People occupied with their daily chores paused in their work to observe us; a few called greetings. Most, if not all, regarded the young woman beside me with looks of unguarded curiosity.

The gateman ran before us into the hall, reappearing a moment later with another man, tall and slender and, despite the grey in his thinning hair, alert and ready-handed.

'Greetings in the name of the Pendragon,' I said. I told him who it was that addressed him and presented the two warriors with me. 'We have come to speak to the chieftain here, and secure his aid.'

'I am Hwyl.' The man stepped before me. 'Urien's chieftain I am, and I give you good greeting, Lord Gwalchavad.' He held out his arms to me by way of welcome. It is an old Celtic custom that when two friends or kinsmen meet, they grip one another by the arms and look into each other's eyes to exchange their greeting. We do this in the north and in the islands, too, although I did not expect to receive such a welcome here. But then, I thought, they did not yet know of Urien's banishment; our reception might sour when they heard what I had to tell them.

Turning his eyes to the young woman, he gave her an appraising look and said, 'I would greet your friend, but you have not told me her name.'

'I had hoped you could tell me,' I replied. 'As we found her within shout of the stronghold, I assumed she was one of your people.'

'My people?' wondered the chieftain, much surprised. 'But you are mistaken. I am certain we have never seen her before.'

Hwyl appeared unsettled by the simple suggestion that the young woman might belong to his tribe. 'Know you, I would remember her,' he stated firmly, 'if I had ever seen her before -and I have not.' He shook his head emphatically. 'She is not of our folk.'

'Well,' I said, 'perhaps some of your people know her. No doubt she comes from a holding nearby.'

'Perhaps,' allowed Hwyl reluctantly. Addressing the girl, he asked, 'Do you have kinsfolk hereabouts?'

Although she turned her eyes towards him as he spoke, she gave no other sign that she had heard the question. He asked again and received again the same uncomprehending stare.

'See, now,' said Hwyl, beginning to lose patience, 'this reluctance is unseemly. We have asked kindly, and expect an answer. We mean you no harm.'

'Please,' I said to Hwyl, 'I believe she is mute. She has not said a single word since we found her.' Seeking merely to reassure her, I reached out and touched her gently on the arm. 'May God have mercy on her soul, it is a pity.'

However light, my touch produced an astonishing result. The young woman pulled her arm away as if my fingertips had burned her flesh. She held the arm stiff and close to her, staring wild-eyed as she backed away from me, rubbing the place my hand had touched. She took three steps and began trembling and shaking all over. Her eyes then rolled up into her head, showing nothing but white. Meanwhile, her mouth framed a scream, but no sound emerged. She then collapsed, falling to the ground, where she began thrashing and rolling, as if in unbearable agony.

I was beside her in two steps. 'Bring water!' I shouted, kneeling over her. 'Hurry!'

Hwyl sent the gateman scrambling away for water. I called to Peredur and Tallaght, 'It is the heat. We must get her out of the sun.'

'Bring her into the hall,' suggested Hwyl, going before me.

By the time the two warriors had dismounted, I was already striding for the entrance. It took all my strength to hold her, for the tremors threatened to throw us down at every step. I could feel the muscles of her back and arms, stiff and tight as iron bands. Somehow, I reached the doorway and stumbled in.

Owing to the high roof and lack of windholes, the hall was dimly dark and much cooler. Along one side of the great room was a series of wicker partitions separating a number of sleeping places. I carried the stricken young woman to the first of these and lay her down on the straw pallet, and then stood helplessly watching the convulsions coursing through her body.

Two women from the settlement entered and rushed to the young woman's side. One of the women carried a water jar, and the other some rags. Kneeling down in the straw, the first cradled the young woman's head in her lap while the other wet the cloth and began applying it gently to her forehead. This produced a soothing effect and, in a moment, it appeared the more violent of her spasms had passed; the girl closed her eyes and lay back, still trembling and shaking somewhat, but quieter.