Hey guys! so yes, yet another reveal fic...but it is something that can never be over done :) I think so at least. There will be spoilers for basically all of the series, but later on. This is set sometime in season 5, I've yet to decide when, but it is after Arthur is King, and Merlin is still hiding his magic.

Please enjoy :) And review to let me know what you think!

The chapters will be updated once a week or so :D

Chapter 1

"Gaius, just tell me, where the hell is my manservant?" Arthur demanded of the old man. He was sitting at the Round Table, with his knights and his Queen. Merlin was meant to be there as well, but was absent. Gaius had turned up in his place.

"I do not know sire, perhaps he is at the tavern? Or helping out with some of the repair works?"

They had been attacked. It had been Morgana's latest attempt, sending an army of magical creatures. The creatures ranged from wyvern to serkets, and they had retreated for some reason, giving the city a lull in fighting. They were desperately trying to repatch the walls and bring all the women, children and citizens not fighting into the castle, where it was safest.

The King was meeting with his council to discuss their options, but they were missing one of their members.

Merlin.

"If he is at the bloody tavern then he has a serious addiction, given the amount of times he is there. Add in the fact that we are in the middle of a battle." Arthur grumbled, anger evident in his face.

"Merlin's nearly never at the tavern." Gwaine spoke up. "I never see him there. Only once, when we took him for celebrating your coronation."

Arthur paused and stared at his knight, then turned to Gaius and raised an eyebrow in question.

"Sire, I mean this as respectfully as possible, but I taught you that look, don't think it is going to work on me." Gaius told the King, who dropped the face and scowled at his oldest friend.

"Where is he Gaius?" Arthur demanded.

Gaius sighed and opened his mouth to answer, when the doors slammed open, allowing the servant to walk in.

"I know I'm late, I was busy helping patch a particular hole up and then we were out of supplies and manpower so I had to hang about until someone could return." Merlin explained, slipping into his seat.

Gaius and Merlin shared a look, that Arthur didn't miss.

"What was that look for?" Arthur demanded. "I'm sick of you hiding things from me Merlin. Don't deny it, I know, I'm not stupid."

"I never said you were, sire." Merlin responded calmly. "I do think you're a stuck-up, obnoxious prat who is becoming paranoid, but I never thought you stupid. Now, are we going to sit around here dilly-dallying, or actually get some planning done?"

Arthur grumbled but let the man change the topic. "Leon, what are the casualties so far?"

Within another two hours, the wyvern reappeared, but nothing else. They hung around the edges of the walls, waiting for something. There was a loud roar, and all the knights turned pale. Arthur swore and turned to check on Merlin, only to find the man running away from the King. Towards the wall.

"Merlin , you idiot!" Arthur shouted after him, taking off after the man.

Arthur followed his manservant through the crowd and up the stairs until they reached the wall. Just in time to see a shape rise from the forest and begin flying towards the city. It was black, and hazy. As it got closer, Arthur gasped as he realised what it was.

A dragon.

A black, shadowing, blurry dragon.

Wait. Arthur frowned as he studied the creature, confused as to why the shape was blurring slightly around the edges.

"It's made of shadow magic, it's not a real dragon, weapons won't kill it, they'll just fly through." Merlin told him, apparently reading his mind and answering the question before he even asked.

"How do we fight it?" Arthur whispered, as the creature approached, not really expecting an answer.

"I fight it." Merlin told the blond King. Arthur turned to lock eyes with his manservant, to demand an explanation for that comment, but the look in Merlin's eyes stopped him. It was a heaviness, a sadness that was so evident on the brunette's face, Arthur was surprised he hadn't noticed it before. "I'm sorry, my King, I am." Merlin whispered.

"What –" Arthur didn't finish the question, as Merlin tipped his head back and roared. Literally, roared. Like a dragon. He then vaulted over the edge of the wall and landed softly on the ground.

"Merlin!" Arthur screamed, as the man ran towards the forest.

A responding roar made Arthur look up and freeze as a shadow blocked out the sun. The dragon was here.

"Get under cover!" Arthur screamed, "Weapons will do nothing!" He swallowed hard and prepared himself to jump over like Merlin but paused when the dragon didn't swoop the city. This dragon wasn't blurry, but was a golden colour and he wasn't attacking Camelot, or eating Merlin or anything like that. The dragon roared and the wyvern scattered, flying away. The shadow dragon roared in response, but the dragon met him head on, claws scratching at the shadows. Logistically the dragon shouldn't be able to be hurt the shadow one, but the roars of pain proved differently. Arthur stared back down at Merlin, who was standing twenty metres from the wall, facing outwards. He lifted his hands and stretched them out to his sides, and began speaking, but Arthur couldn't hear what he was saying. A few seconds later and a golden shield appeared around Camelot, flickering into existence then disappearing again. Seconds later a huge ball of lightning appeared and hit the invisible barrier, being absorbed by the shield and leaving Camelot protected.

Arthur stared in shock at Merlin. He had magic. His manservant had magic.

TBC