So for three days. Then, with the ship's master cocking a worried eye aloft at the suddenly moody canvas, theOrc put into Segontium, on the coast of Wales just across from Mona's Isle.

  This was a much bigger place than the little Rheged port. Caer y n'a Von, or Segontium, as it had been in Roman times, was a big military garrison, recently rebuilt to at least half its old strength. The fortress lay on the stony hillside above the town, and beyond that again rose the foothills and then the cloud-holding heights of Y Wyddfa, the Snow Hill. To seaward, across a narrow channel as blue in the sunshine as sapphire, lay the golden fields and magic stones of Mona, isle of druids.

  The boys lined the ship's rail, staring and eager. At length Morgause came out of her cabin. She looked pale and ill, even after such a smooth and easy voyage. ("Because she's a witch, you see," said Gareth, proudly, to the escort's captain.) When the ship's master told her that they must wait in harbour for a change of wind, she said thankfully that she would not sleep on board, and her chamberlain was sent across to engage rooms at the wharfside inn. This was a prosperous, comfortable place, and good rooms were forthcoming. The party went cheerfully on shore.

  They were there for four days. The queen kept to her rooms with the women. The boys were allowed to explore the town, or, still carefully watched, to go down to the shore to hunt for crabs and shellfish. The second time they set out, Mordred, as if on an impulse of boredom, turned back. Though he did not say so within his brothers' hearing, he let the two guards see that crab-hunting offered no amusement to a boy who had done it for a living only a few years ago. He left them to it, and went alone into the town, then, hiding his eagerness, sauntered at an easy pace along the track that climbed away from the houses and led past the fortress walls towards the distant heights of Y Wyddfa.

  The air was dazzlingly clear after the night's frost. The stones were already warm. He sat down. To any watcher he would appear to be enjoying the view and the sunshine. In fact he was looking carefully about him at the prospect of escape.

  Above him, in the distance, a boy tended a flock of sheep. Their tracks seamed the face of the hill. Higher, beyond the slopes of stony pasture, lay a wood, the outskirts of the forest that swept up to clothe the flanks of the Snow Hill. A gap in the trees showed where a road led eastward.

  There lay the way. The road would surely join the famous Sarn Elen, the causeway that led down to Deva and the inland kingdoms. He could lose himself there, easily. He had all his money on him, and, with last night's frost as an excuse, had brought his cloak.

  A pebble rattled on the path. He looked round, to see, barely a dozen paces away, the two guards standing, at ease, ostensibly gazing idly into the distance towards the beach below the town. But their pose was alert, and from time to time their glances came his way.

  It was the same two men who had accompanied the princes to the shore. Now, small in the distance, he could see his brothers, easily recognizable among the other crab-catchers on the beach. He looked for their escort, and saw none.

  The men had left the other boys to their pastime, and had followed him quietly up the hillside. The conclusion was inescapable. The guards were for him alone.

  An emotion that the caged wildcat would have recognized swelled burstingly in Mordred's breast, and into his throat. He wanted to shout, to lash out, to run.

  To run. He jumped to his feet. Instantly the men were moving, casually, towards him. They were young and fit. He could never outdistance them. He stood still.

  "Time to be going back, young sir," said one of them pleasantly. "Nearly dinner time, I reckon."

  "Your brothers are going in," said the other, pointing. "Look, sir, you can see them from here. Shall we go down now?"

  Mordred's face was still as stone. His eyes betrayed nothing of the emotion that filled him. Something that no wild animal — and few men — would have understood kept him silent and apparently indifferent. In two deep and steadying breaths he willed the fear and with it the furious disappointment to spill from him. He could almost feel it draining from his fingertips like blood. In its place came the faintest tremor of released tension, and then, into the emptiness, the calm of his habitual control.

  He nodded to the men, said something distant and polite, and walked back to the inn between them.

  He tried again next day.

  The princes, tired of the shore and the town, were avid to visit the great fortress on the hillside, but this

  their mother would not consider. Indeed, the escort's captain said flatly that even princes of Orkney would not be allowed within the gates. The place was fortified and always held in readiness.

  "For what?" asked Gawain.

  The man nodded at the sea.

  "Irish?"

  "Picts, Irish, Saxons. Anyone."

  "Is King Maelgon here himself?"

  "No."

  "Which is Macsen's Tower?" The idle-sounding question came from Mordred.

  "Whose tower?" demanded Agravain.

  "Macsen's. Someone spoke of it yesterday." The someone had been one of his guards, who had remarked that the site of the tower was well up on the hillside, not far below the wood.

  The captain pointed. "It's up there. You can't see it now, though, it's a ruin."

  "Who was Macsen?" asked Gareth.

  "Do they teach you nothing in Orkney?" The man was indulgent. "He was Emperor of Britain, Magnus

  Maximus, a Spaniard by birth—"

  "Of course we know that," interrupted Gawain. "We are related to him. He was Emperor of Rome, and it was his sword that Merlin raised for the High King: Caliburn, the King's sword of Britain. Everyone knows that! Our mother is descended from him, through King Uther."

  "Then should we not visit the tower?" asked Mordred. "It's not inside the fortress, so surely anyone can

  go? Even if it's ruined—"

  "Sorry." The captain shook his head. "Too far. Against orders."

  "Orders?" Gawain was beginning to bristle, but Agravain spoke across him, rudely, to Mordred.

  "Anyway, why should you want to go? You're not Macsen's kin! We are! We are royal through our mother as well."

  "Then if I am bastard Lothian, you can count yourselves bastard Macsen," snapped Mordred, fear and tension breaking suddenly into fury, and careless for once of his tongue.

  He was safe enough. The twins, loyal to their boyhood rule of silence where their mother was concerned, would never have thought of repeating the insult to Morgause. Their methods were more direct. After a startled pause of sheer surprise, they yelled with rage and fell on Mordred, and the pent-up energies of seaboard suddenly exploded in a very pretty dog-fight all round the inn yard. After they had been pulled apart and then beaten for fighting, the queen was so angry at the disturbance that she forbade any more excursions from the inn. So no one got to Macsen's Tower, and the boys had to content themselves with knucklebones and mock fights and story-telling; children's ploys, said Mordred, this time with open contempt, still smarting, and stayed away.

  The next day, quite suddenly in the evening, the wind changed, and blew strongly again from the north. Under the watchful eye of the escort the party re-embarked, and theOrc made quickly south with a steady wind until she could turn in from the open weather to the quiet waters of the Severn Sea. The water was like glass. "Right to the Glass Isle," said the master, "I do assure you." And the shallow-draughtedOrc did indeed sail in on an estuary mirror-smooth, with the oars out for the last stretch to take the little ship clear up to the wharf of Ynys Witrin, the Isle of Glass, almost in the shadow of the palace walls of Melwas, its king.

  Melwas's palace was little more than a large house set in the flat meadowland rimming the largest of the three sister islands called Ynys Witrin. Two of the islands were hills, low and green, that rose gently from the encircling water. The third was the Tor, a high, cone-shaped hill symmetrical as an artefact, and girdled at its base with apple orchards where wisps of smoke proclaimed the cottages of the village that was
Melwas's capital. It towered above the surrounding water-logged flatland of the Summer Country like a great beacon. This, in fact, was one of its functions; a beacon turret stood at the very top of the Tor, the nearest signal point to Camelot itself. From that summit, the boys were told, those walls and shining towers might be seen quite close and clearly, across the glassy reaches of the Lake.

  King Melwas's own fortress lay just below the Tor's summit. The approach to it was a winding road, steeply cut from the gravel of the hill. In winter, men said, the mud made it all but impossible to get to the top. But then in winter there was no fighting. The king and his company stayed in the comfort of the lakeside mansion, and their days were filled with hunting, which was mostly, in that sodden Summer Country, wild-fowling in the marshes. These stretched away to southward, with their glinting waters only occasionally broken by the willow islands and the alder-set reed-beds where the marsh-dwellers had built their raised hovels.

  King Melwas received the party kindly. He was a big, brown-bearded man, with a high colour and a red, full-lipped mouth. His attitude to Morgause was one of open admiration. He greeted her with the ceremonial kiss of welcome, and if this was a shade too prolonged, Morgause made no objection. When she presented her sons the king was warm in his welcome of them, and rather warmer in his praise of the woman who had borne so handsome a tribe. Mordred, as always, was presented last. If, during the formal greetings, the king's look came back rather too often to the tall boy standing behind the other princes, no one but the boy himself seemed to notice. Then Melwas, with another lingering look, turned back to Morgause, with the news that a courier awaited her from the High King.

  "A courier?" Morgause was sharp. "To me, the King's sister? You must mean one of his knights? With an escort for us?"

  But no; it seemed that the go-between was merely one of the royal couriers, who, waiting duly on Morgause, gave Arthur's message briefly and with little ceremony. Morgause and her party were to remain on Ynys Witrin until the following day, when they were to ride, with an escort sent by Arthur, to Camelot. There the King would receive them in the Round Hall.

  The younger boys, excited and barely controllable, noticed nothing amiss, but Gawain and Mordred could see how anger fought with growing apprehension in her, as she questioned the man sharply.

  "He said nothing more, madam," repeated the courier. "Only that he desired your presence tomorrow in the Round Hall. Until then, you will stay here. The, Lady Nimue, madam? No, she has not yet returned from the north. That is all I know."

  He bowed and went. Gawain, puzzled and inclined to be angry, started to speak, but his mother waved him to silence, and stood for a while biting her lip and thinking. Then she turned quickly to Gabran.

  "Have them call my women. They are to unpack our clothes, and lay out the white robe for me, and the scarlet cloak. Now, yes, now, man! Do you think I will stay here tamely overnight, and go at his bidding to the Round Hall tomorrow? Do you not know what that is? It's Arthur's council chamber, where judgments are given. Oh, yes, I have heard of that hall, with its 'Perilous Chair' for the wrong-doers and those with grievances against the High King!"

  "But what peril can there be for you? You have done him no wrong," said Gabran quickly.

  "Of course not!" snapped Morgause. "Which is why I will not go like a suppliant or a wrong-doer, to be received in front of the Council by my own brother! I will go now, tonight, while he is in hall at supper with the Queen and all the court. Let us see then if he intends to deny her state to the mother of—" She stopped, and apparently changed what she had been going to say. "—To his sister and his sister's sons."

  "Madam, will they let you go?"

  "I am not a prisoner. How can they stop me, without letting people see that I am ill used? Besides, the King's troop has gone back to Camelot, has it not?"

  "Yes, madam, but King Melwas—"

  "After I am dressed, you may ask King Melwas to come and see me."

  Gabran turned rather reluctantly to go.

  "Gabran." He stopped and turned. "Take the boys with you. Tell the women to get them ready. Their court clothes. I will see to it that Melwas gives us horses and an escort." Her lips thinned. "As long as we are guarded, Arthur cannot hold him accountable. In any case, that is Melwas's danger, not ours. Now go. You will not ride with us. You will follow with the rest tomorrow."

  Gabran hesitated, then, catching her eye, bowed his head and went from the room.

  It was not hard to guess what sort of persuasion she used with Melwas. In the event, she got her way. By the brief autumnal sunset the little party was riding across the causeway that led eastwards across the Lake. Morgause rode a pretty grey mare, richly harnessed with green and scarlet, and chiming with bells. Mordred, to his great surprise, was given a handsome black horse, well matched with the one Gawain rode. The armed escort sent by Melwas clattered along, strung out alongside them on the narrow causeway. At their backs the sun set in a furnace of molten brass that died slowly to burnt green and purple. There was a chill to the air, a touch of frost coming with the blue shadows of twilight.

  The horses' hoofs scrunched up to a ridge of gravel, and then the road lay ahead, a pale strip leading through the watery wilderness of reeds and alders. Duck and wading birds fled upwards with a clatter, the water rippling back from their wakes like melted metal. Mordred's horse shook its head and the bridle rang with silver. In spite of himself he felt his heart lift suddenly with excitement. Then all at once someone exclaimed and pointed.

  Ahead, at the summit of a thickly rising forest, their bannered pinnacles catching the last of the sunset and flaming up into the evening sky like torches, rose the towers of Camelot.

  It was a city set on a hill. Caer Camel was flat-topped and very wide, but it stood up as conspicuously as the Tor in the midst of that level or low-rolling countryside. Its steep sides were ridged, horizontally, as if a gigantic plough had been driven round the hill. These ridges were revetments and ditches, designed to hinder attackers. At the crest of the ringed hillside the fortress walls circled the summit like the crown on a king's head. At two points, north-east and south-west, the massive defense works were pierced by gates.

  Morgause's party approached from the south-west, towards the entrance called the King's Gate. They crossed a small winding river, then followed the road as it curved steeply upwards through thick trees. At the top, set in the corner of Camelot's outer walls, stood the massive double gate, open still but guarded. They halted while the escort's captain rode forward to exchange words with the officer of the watch.

  Presently both men came back together to where Morgause waited.

  "Madam." The officer made her a courteous inclination. "You were not looked for until tomorrow. I have no orders concerning your party. If you will wait here, I will send a message up—"

  "The King is in hall?"

  "Madam, yes, he is at supper."

  "Then take me to him."

  "Madam, I cannot. If you—"

  "You know who I am?" The icy question was meant to intimidate.

  "Of course, madam—"

  "I am the High King's sister, daughter of Uther Pendragon. Am I to be kept here at the gate like a suppliant or a courier?"

  A faint film of sweat showed on the man's forehead, but he was not noticeably discomposed. "Of course not, madam, not here, outside the gates. Please ride within. The men are coming now to close them. But I'm afraid you must wait here while a message goes up to the hall. I have my orders."

  "Very well. I won't make it hard for you. My chamberlain will go to him." Morgause spoke firmly, flatly, as if even now she had no doubt that her command would be obeyed. She softened it with one of her prettiest smiles. Mordred saw that she was nervous. Her mare, reading its rider's mood, fidgeted and tossed its head till the golden tassels swung in a tangle.

  The officer, with apparent relief, agreed to this, and after a word with his mistress the chamberlain went off between two of the guards. Morgause's party r
ode up through the deep, fortified archway of the King's Gate, and were halted just inside it to wait.

  Behind them the great gates swung shut. The bars clanged down into place. Overhead, along the battlemented walls, went the tramp and stamp of sentries. Ironically enough these sounds, which should have reminded Mordred forcibly that he was a prisoner, still constrained to meet an unknown and doubtful fate, hardly got through to him. He was too busy looking about him. This was Camelot.

  Inside the gate a roadway led uphill towards the walls of the palace. Poles were set at intervals along this road, with torches hung in brackets to light the way. Midway up a considerable slope the road forked, the left-hand way leading to a gateway in the palace walls beyond which could be seen the tops of trees, now bare. Another garden? Another prison made for a queen's pleasure? The other branch of the road curled round under the palace walls to another, bigger gate which must lead into the township. Above the wall could be discerned the roofs and turrets of houses, shops and workshops grouped around the market-place, with, beyond these again to the north, the barracks and stables. The town gates were shut, and no people were about except the sentries.

  "Mordred!"

  Mordred, startled out of his thoughts, looked up. Morgause was beckoning.

  "Here, beside me."

  He urged his horse forward to her right. Gawain started to move to her other side, but him she waved back. "Stay with the others."

  Gawain, who, since the dog-fight in the inn yard, had held aloof from Mordred, scowled as he reined back, but he said nothing. None of the others spoke. Something of Morgause's tension had communicated itself even to Gareth. She did not speak again, but sat straight and still, staring at her horse's ears. Her hood was back, her face expressionless and rather pale.

  Then it changed. Mordred, looking where she looked, saw the chamberlain hurrying back with the two guards, and, some way behind them, alone, a man coming down the road towards them.