For twenty years, Camelot shone like a star. The Round Table brought justice and peace to all of Britain. The knights were noble and brave, King Arthur was wise and just, and Queen Guinevere was loved by everyone.

Camelot was a dream come true — a place where strength served justice, where knights protected the weak, where all were equal around the round table. But, as an old proverb says, the higher you fly, the harder you fall. And Camelot was about to fall.

The first problem, though no one knew it at the time, was Camelot's own success. With peace established, there were no more dragons to defeat, no tyrants to fight, no maidens to rescue, and the knights grew restless, without a purpose.

Many of the best had ridden away on the quest for the Holy Grail. Some had died. Others, like Percival, never came back. The Round Table, which had once gathered one hundred and fifty knights, now held little more than twenty. And Merlin — wise Merlin, who had always guided Arthur — was gone, imprisoned by Nimue. Arthur had to make every decision alone.

"I miss him," Arthur confessed to Guinevere one night. "I miss his wisdom. Ruling without Merlin is like sailing without stars."

Guinevere took her husband's hand.

"You have ruled very well, my king. Camelot prospers."

But there was sadness in her eyes. A sadness she kept hidden.

Camelot's greatest secret involved two people: Guinevere and Lancelot.

Sir Lancelot du Lac was the greatest knight of the Round Table, the noblest, the bravest. He loved Arthur like a brother, and he had sworn to protect Guinevere with his life. But somewhere along the years, protection turned into something more: Lancelot and Guinevere fell in love.

They never wanted it to happen. Guinevere loved Arthur — her husband, her king, her friend. Lancelot revered Arthur — his lord, his brother in arms, everything he valued most. But the heart does not choose whom to love, and the more they tried to flee from that feeling, the stronger it grew.

For years they kept their love secret and never acted upon it. But their glances lasted a little too long, and their words carried hidden meanings. And others began to notice.

One of those who noticed was Mordred.

Mordred was the son of Morgana — and, in some versions of the legends, the son of Arthur himself, through complicated circumstances the king knew nothing about. He was a knight of the Round Table, but different from the others. Where Gawain was brave, Mordred was calculating. Where Lancelot was noble, Mordred was ambitious. Where the others sought glory through heroic deeds, Mordred sought power through intrigue.

"Why should Arthur be king?" Mordred murmured to himself. "I have as much right to the throne as he does. Perhaps more."

Mordred watched everything. He noticed every glance between Lancelot and Guinevere, and he knew it was a weapon — a weapon he could use when the right moment came. And he waited, patiently, like a snake waiting for the moment to strike.

Mordred's moment came when Arthur decided to lead a military expedition to France. A Roman lord was stirring up trouble in the French lands Arthur had conquered years before, and the king gathered his knights — Lancelot among them — to restore order.

"But who will govern Camelot while I am away?" Arthur asked the council.

"Lancelot should stay," Gawain suggested. "He is the best of us."

But Lancelot refused quickly — too quickly.

"No, my lord. My place is at your side in battle. Let... let Sir Mordred govern in your absence."

Arthur hesitated. There was something about Mordred that troubled him. But Mordred was his nephew — or his son, depending on the version of the tale — and he was a knight of the Round Table.

"Very well," Arthur agreed. "Mordred, I entrust my kingdom and my queen to you. Govern wisely until my return."

Mordred bowed low, hiding a triumphant smile.

"With my life, Your Majesty."

At first, Mordred governed well. He kept the peace and judged disputes fairly, and people began to think that perhaps he was a good ruler. But it was all a mask. Mordred was scheming.

He began to spread rumors, in whispers: have you noticed how sad the queen is without Sir Lancelot? Why do you suppose Lancelot refused to stay and protect her? Have you seen the way those two look at each other? Some of the knights who had stayed behind in Camelot — men jealous of Lancelot, men as ambitious as Mordred himself — began to suspect.

Then Mordred made his master stroke. He spread a terrible rumor: King Arthur had died in battle in France. The news ran like fire, the people wept, and Camelot sank into mourning. But Mordred was not mourning. Mordred was smiling.

"Camelot needs a king," Mordred announced to the nobles. "And who has a better claim than I, Arthur's nephew, the guardian he himself chose?"

Some nobles protested, asking that they wait for the news to be confirmed. But Mordred had prepared. He had allies — ambitious men to whom he had promised land and power — and a small but loyal army.

"I shall be king," Mordred declared. "And to secure my claim, I shall wed Queen Guinevere."

The hall fell into a stunned silence. Guinevere, when she heard, was horrified.

"Never!" she cried. "My husband lives! And even if he did not, I would never marry the traitor who steals his crown!"

She fled from Mordred and shut herself in the Tower of London with her loyal servants, saying she would not come out until her true king returned. Mordred besieged the tower but could not get in. And he could not harm Guinevere: he needed her alive to justify his reign. He was at a standstill.

Meanwhile, in France, Arthur received terrible news. A messenger arrived, wounded and exhausted.

"Your Majesty! Mordred has proclaimed himself king! He says you are dead, and he holds the queen under siege in the Tower of London!"

Arthur went pale — not with fear, but with fury and grief.

"Traitor," he said. "I trusted him. I gave him everything."

Lancelot laid a hand on Arthur's shoulder.

"We will return, my king. We will defeat Mordred and rescue the queen."

Arthur looked at Lancelot, his most faithful friend, his finest knight. He knew nothing of the secret love between Lancelot and Guinevere, and he trusted him completely.

"Yes," said Arthur, his voice like steel. "We will go home. And there will be justice."

Arthur's army turned and marched back toward Britain. But Lancelot rode ahead with a few swift knights: he had to save Guinevere.

Lancelot reached London first. He and his men attacked Mordred's forces surrounding the tower. The battle was fierce, and Lancelot fought like a lion: he cut his way through Mordred's men, reached the tower, and saved Guinevere.

"Lancelot!" Guinevere wept when she saw him. "I knew you would come."

For a moment, they looked into each other's eyes. All the love they had kept hidden, all the years of denial, everything was there in that gaze. It was Lancelot who looked away first.

"I must take you somewhere safe, Your Majesty. King Arthur is returning. He will restore order."

But the damage was done. The men of Mordred who survived had seen Lancelot save the queen, had seen the look that passed between them, and they spread the story: Lancelot and the queen were lovers, and that was why he had saved her. It was not true — Lancelot and Guinevere had never betrayed the king. But the appearance of truth is sometimes more powerful than truth itself.

When Arthur arrived, he found his kingdom divided. Mordred had an army of discontented nobles and mercenaries; Arthur had the loyal knights of the Round Table. But Arthur had also heard the rumors about Lancelot and Guinevere. His counselors told him, his knights murmured, and even Gawain gently warned him.

"My lord," said Gawain sadly, "there are rumors... about the queen and Lancelot. I do not want to believe them, but..."

Arthur raised his hand.

"Silence. I know Lancelot: he is the noblest knight who ever lived. And Guinevere is my queen, my wife, my friend. I will not listen to rumors spread by traitors."

But deep in his heart, a small seed of doubt had been planted. And that seed would ache more than any sword wound.

Arthur sent a message to Mordred: "Surrender. You are still my nephew, and I will show mercy if you lay down your arms now." Mordred's answer was short: "Come and take the kingdom from me, uncle. If you can." The civil war had begun.

Small battles flared up all across Britain. Brother fought against brother, friends became enemies, and the kingdom Arthur had united was tearing apart. Lancelot wanted to fight at the king's side.

"Let me prove my loyalty in battle, my lord."

But Arthur, swayed by the whispers and the doubts, answered:

"No. Take the queen to your castle, Joyous Gard, and keep her safe. That is your task."

Lancelot obeyed, his heart broken. He knew Arthur was pushing him away; he knew the king doubted him. And so the two best friends, the two greatest heroes of Camelot, were separated just when they needed each other most.

Mordred advanced, and his army grew. Arthur, without Lancelot, without Merlin, and without many of his finest knights, lost on the quest for the Grail, was at a disadvantage. The final battle drew near, and everyone knew it: one way or another, Camelot was coming to an end. The story continues in Part 2.