This is my first Merlin fan fic, so please bear with me. I hope it's not terrible. I was going through the fics and didn't see one similar, so if someone did do this before me and I missed it I do apologize. I never meant to steal your idea. I don't quite have their voice patterns or rhythms down yet.

The All Knowing Knights

Sir Leon

Sir Leon was polishing his favorite shield in the armory while the other knights were rough housing. He smirked when Percival and Gwaine took turns smacking Elyan in the back of the head when he wasn't looking. Leon would never admit that he rather enjoyed listening to Elyan whine.

"Do make them stop, will you?"

"I'm not their father, nor am I yours," Leon said. He rolled his eyes; it was only because he was the eldest and the captain of the guard that he felt like the father figure.

"You treat me worse than Arthur treats Merlin," said Elyan.

"Merlin's a sorcerer," said Percival quietly.

The tall man sat down, they all did, save for Leon who leaned against the wall beside him. He pretended to be interested in the suit of armor next to the window for a moment while he was lost in his thought.

They all know. How could they not?

"Come now, don't say that too loudly," said Gwaine, who out of all of them was the friendliest with Merlin. They all loved him, but Gwaine and Merlin had a special relationship.

Leon recalled the exact moment he learned Merlin was a sorcerer, and realized the exact moment he knew he would take that secret to his grave. He hadn't been a preferred knight of the king for very long, maybe a few months.

It was shortly after Uther married a troll. Leon smirked at the memory, though he knew he shouldn't. It was something everyone in Camelot would rather forget. But Leon remembered it fondly just the same.

He is shaken from the memory by Gwaine who was still trying to get everyone to keep their mouths shut about it. Leon got lost in his thoughts and allowed them to carry him back to the day he stumbled into Gaius's chambers for a sleeping draught.

He thought he heard Merlin's voice in the back room saying words that he did not recognize in a tone of voice he had never heard before. The door was partially open. Leon lingered a bit and was surprised by what he saw. Merlin was doing magic as if it was the most natural thing in the world. Leon stared for a bit.

"I have to break the enchantment on Uther, and none of these spells will work," Merlin said to someone in the room that Leon assumed had to be Gaius. Leon stepped back and quietly left without disturbing them. He had seen enough.

His first instinct was to tell the king, but as he walked the familiar corridors to the Throne Room of the citadel, he couldn't seem to bring himself to do so. Merlin was doing magic to help Uther. It conflicted with everything he had been raised to believe: that all Sorcerers were bad. Perhaps they were simply misunderstood.

"We must never speak of this outside this room," Leon said coming back to the conversation and finally taking a seat beside Percival. The big man scooted to make room.

"You've known Merlin longer than all of us; did you know the whole time?" Elyan asked.

"Yes," Leon said after a brief hesitation. He put his face in his hands and sighed. It was a relief in many ways to finally talk about it with someone—especially someone he trusts. Merlin's secret was safe with the four of them.

"I am not comfortable talking about this," said Gwaine, who flipped his dark locks out of his face.

"As it turns out Merlin's not the only magical thing in Camelot. What about Gwaine's hair?" asked Leon. Elyan laughed the loudest at Leon's joke.

"Go eat a boiled toad, you clotpole," Gwaine said.

"Been spending a lot of with Merlin, I see," said Elyan. Leon had cast a sideways glance at Percival who twitched.

"Arthur can never find out," Leon said in seriousness. He looked at each of the knights in turn. He stood up again. Their eyes followed him.

"It seems wrong to keep secrets from the king," said Elyan, "He's my brother now."

"Elyan," said Leon, stepping forward. "You cannot speak of this to Arthur. For Merlin's sake as well as Arthur's, I can only imagine what kind of pain this would bring. I do not wish to inflict that on either of them. Merlin will tell Arthur when the time is right."

"When will that be exactly?" Elyan asked.

Sir Leon shook his head. He sighed again. If only I knew.

"We'll all be hanged for treason," said Elyan.

He attempted to leave, but Leon grabbed his upper arm. He shook his head. Elyan jerked his arm out of Leon's grip and glowered at him.

"It will not come to that. Arthur will be angry, of course, but in time he will learn why Merlin does what he does. He will come to understand."

"Then everything we have fought for will have been in vain," Elyan said.

Leon patted his shoulder. It was difficult to accept that the whole mess with Morgana would not come to pass if Merlin had just exposed his magic to Arthur when he first arrived in Camelot all those years ago.

Leon cast the thought from his mind. It did no one any good to dwell on the past.

"Be that as it may, we must keep this secret. We take it to our graves," Leon said.

"I'm with you," said Gwaine.

"As am I," said Percival.

Leon knew Percival's heart. He would do most anything that Gwaine did. This time it was for the good because it meant they would be protecting someone they all love very much. Leon stared Elyan down. If anyone could get him to come around Leon knew he was the man for the job.

"No," said Elyan stubbornly. He sat down on and continued to sharpen his sword. There were servants who could do that for them, but they chose to do it themselves.

They all stopped talking abruptly when they heard footsteps in the corridor. The door swung open to reveal the person they had all just been talking about. Merlin was burdened down with all of Arthur's armor and weaponry. This is something that would have made Leon laugh on a normal day, but today he felt sympathetic and went to Merlin's aid.

"Thank you, Leon," said Merlin, "It's nice to see someone being friendly."

"Merlin," said Leon in a tone that immediately got Merlin's attention. He put Arthur's armor on the floor, and kicked it. That put a smile on Leon's face for a moment.

His heart was pounding. This was not a subject to be brought up easily and he wondered if he should mention that they all knew about his secret. He was at a loss for words and looked at his fellow knights for aid.

"We know, Merlin," said Percival.