Vortipor! Foremost in corruption, supreme in spite! A pig with its snout sunk in the entrails of its rival is not swifter than you to suck down iniquity. Your wickedness flows from your smoke-filled hall and inundates the land in a vile flood of wrongdoing.

You call yourself noble. You call yourself king. You call yourself exalted. Exalted in sin, perhaps. You have wreathed your head with laurel, but this is not deserved – unless men now bestow the laurel crown for immorality, at which you are a champion among men!

Urien Rheged! Your name is a reproach. Fornicator! Adulterer! Chief Despoiler! Pillar of Impurity! The lowest vermin in your refuse pit is not lower than you.

Chief Drunkard! Chief Glutton! Defiling all you touch. To you is given the depravity of ten, the iniquity of a hundred, the perversion of a thousand! Your chancrous body is bloated with your corruption. You are dead and do not know it, but the stench of your corpse rises to heaven!

Maelgwn! Great Hound of Gwynedd! How far have you fallen from your father's high position. Maelgwn the Tall earned his stature through righteousness and virtue; you steal it from his memory. Is it possible that you have forgotten all that you once knew?

You have seized the kingship by murder and rapine. For this you call yourself Chief Dragon of the Island of the Mighty. You think to wrap yourself in another man's glory, but it has become a shroud of infamy to you. Pendragon! May eternal shame devour you for your presumption.

Yet, there was once a king worthy of that name. That king was Arthur.

It is the paramount disgrace of this evil generation that the name of that great king is no longer spoken aloud except in derision. Arthur! He was the fairest flower of our race, Cymry's most noble son, Lord of the Summer Realm, Pendragon of Britain. He wore God's favour like a purple robe.

Hear then, if you will, the tale of a true king.

Arthur is no fit king. Uther's bastard, Merlin's pawn, he is lowborn and a fool. He is wanton and petty and cruel. A glutton and a drunkard, he lacks all civilized graces. In short, he is a sullen, ignorant brute.

All these things and more men say of Arthur. Let them.

When all the words are spoken and the arguments fall exhausted into silence, this single fact remains: we would follow Arthur to the very gates of Hell and beyond if he asked it. And that is the solitary truth.

Show me another who can claim such loyalty.

'Cymbrogi,' he calls us: companions of the heart, fellow-countrymen.

Cvmbrogi! We are his strong arm, his shield and spear, his blade and helm. We are the blood in his veins, the hard sinew of his flesh, the bone beneath the skin… We are the breath in his lungs,''the clear light in his eyes,I and the song rising to his lips. We are the meat and drink at his board.

Cvmbrogi! We are earth and sky to him. And Arthur is all these things to us – and more.

Ponder this. Think long on it. Only then, perhaps, will you begin to understand the tale I shall teU you.

How not? Who, besides the Emrys himself, knows as much as I? Though I am no bard, I am worthy. For I know Arthur as few others do; we are much alike, after all. We are both sons of uncertain birth, both princes unacknowledged by our fathers, both forced to live our lives apart from clan and kin.

My father was Belyn, Lord of Llyonesse. My mother was a serving woman in the king's house. I learned early that I would receive nothing from my father's hand and must make my own way in the world.

I was little more than a boy when Myrddin agreed to make me his steward, but I have regretted not one day. Even through those long years of his madness, when I searched the hidden ways of wide Celyddon alone, I desired nothing but to be once more what I had been: servant and companion to Myrddin Emrys, Chief Bard in the Island of the Mighty.

I, Pelleas, prince of Llyonesse, will tell all as I have seen it… And I have seen much indeed.

'Are you certain, Myrddin?' Arthur whispers, anxiously. 'Everyone is watching. What if it will not work?'

'It will, as you say, "work". Just do as I have told you.'

Arthur nods grimly, and steps up to the great keystone where the sword stands, its naked blade stuck fast in the heart of the stone.

The yard is mostly empty now. Those going in to Urbanus' mass have done so. It is cold, the day dwindling towards dusk. A few small snowfiakes drift out of the darkening sky, to fall on the Sagged stone pavement at our feet. Our breath hangs in clouds above our heads.

It is the eve of the Christ Mass, and the lords of Britain have come to Londinium to hold council – as they do nearly every year – to essay who among them might become High King.

Fifteen years have come and gone since the sword was first placed there. Now the once-fine steel is rusted, the stone weathered and stained. But the eagle-carved amethyst in the hilt still glows, its imperial fire undiminished.

Macsen Wledig's sword it is. The Sword of Britain. Emperor Maximus once owned the sword – and Constantine, Constans, Aurelius, and Uther after him, each in his turn High King of Britain.

Yes, fifteen years have come and gone since that first council. Fifteen years of darkness and unceasing strife, of dissent, disappointment and defeat. Fifteen years in which the Saecsens have grown strong once more. Fifteen years for a boy to grow to manhood.

A young man now, he stands grim-faced gazing at the sword thrust deep into the stone… hesitant, uncertain.

'Take it, Arthur,' Merlin tells him. 'It is your right.'

Arthur reaches slowly for the bronze hilt. His hand shakes. Cold? Fear? A little of both, perhaps.

He grasps the hilt and glances at Merlin, who nods silently. He drops his eyes and draws a breath, taking courage, steeling himself for whatever will happen.

Arthur's fingers tighten on the silver-braided hilt: see how naturally it fits his hand! He pulls.

The Sword of Britain slides from its stone sheath. The ease with which this is accomplished shines in the wonder in Arthur's eyes. He truly cannot believe what he has done. Nor can he comprehend what it means.

'Well done, Arthur.' Merlin steps to the stone beside him, and Arthur, without thinking, offers the sword to him. 'No, son,' he says gently, 'truly, it is yours.'

'What should I do?' Arthur's voice is unsteady, rising. 'Myrddin, you must tell me what to do! Else I am lost.'

Merlin places a calming hand on Arthur's shoulder. 'Why do you fear, my son? I have ever been with you. God willing, it will always be so.' They turn together and walk into the church.

Yes, we have ever been with him, it is true. I cannot remember a day when we were not. Even so, it is difficult… difficult to believe that the young man standing on the threshold of the church has not simply stepped full-grown from out of a hollow hill, or an enchanted pool in Celyddon Forest.