Hey guys! I'm so sorry I haven't updated! I had a huge case of writers block but I'm back now so yay! Ok lets solve this cliffhanger. Disclaimer time, I DO NOT IN ANY WAY OWN MERLIN (sadly) Ok here we go Chapter 5.

Arthur's hand instinctively grabbed at where his sword was supposed to be sheathed before remembering that Merlin was in his body, therefore had his armor, and therefore had his sword.

"You what?" He said his voice dangerously quiet. "I trusted you Merlin! How could you do this to me!" His voice grew louder with every syllable.

"Arthur, I promise you I've only ever used my magic to protect you." Merlin said his hands raised in a position of surrender.

"How can I believe anything you have to say?" Arthur spat. "You're a traitor and a liar. I can't believe I ever trusted you."

"I'm not a traitor. Everything I have ever done was for the good of Camelot." Merlin said desperately.

"Prove it!" He snarled.

Merlin thought about how to go about proving it. The easiest thing to do was to recite a spell, but he couldn't do that because Arthur had his magic, so he'd have to tell him what he had done. But there was no guarantee that Arthur would believe him.

"Okay." Merlin said calmly after a moment. "This is going to be a little scary for you, but remain calm and repeat after me."

"Why? How do I know your not going to make me kill myself?"

Merlin rolled his eyes. "Okay first of all, I would never do that. Second of all, your in my body, if you die I'm stuck here, in this." He gestured to Arthur's body.

"And why wouldn't you want that? For all I know you could of placed this spell on us so you could be King!" Even Arthur knew he was reaching but he didn't want to listen to anything Merlin had to say.

"I'd be a terrible King." Merlin said flatly "Now just for once in your life do what I tell you!"

Arthur's shoulders (well technically Merlin's shoulders) slumped in defeat. "Fine." He snapped.

"Fromum feohgiftum on faeder bearme. Fromum feogiftum." He said slowly enough so Arthur could pronounce it correctly.

Arthur shot him a murderous glare, but sighed and repeated it. His eyes flashed and a small ball of light floated in his palm. Arthur recognized it. Many years ago when Merlin had drank out of the poisoned chalice this light had guided him out of the cavern where the mortis flower grew.

"Even all those years ago, it was you." Arthur shook his head and extinguished the ball of light in his palm.

"I saved you then and I haven't stopped since." Merlin said quietly

"Why didn't you tell me?" Arthur asked the anger in his voice replaced by sadness.

"I wanted to. You can't even believe how much I wanted to. But your father would have killed me without a second thought."

"And me? What about when I became King?"

"Magic killed your father. I would hate it too if I were you."

"I would have been fair to you."

"Really? Cause I'm pretty sure if I didn't have your sword, my head wouldn't be attached to my shoulders right now."

Arthur sighed reluctantly knowing he was probably right.

"Ok so what happens now?"

.oo0oo.

"Oh I'll show you what happens now!" Morgana spat at her scrying dish. Arthur was okay with this? She had expected Emrys to be history by now and then Arthur who was not in control of his powers to be easy prey. In fact she had expected him not to make it past her bandits. Well if you want something done right you have to do it yourself.

"Oh Mordred!" She cooed almost endearingly. Almost. There was still an underlying bitterness to her tone that made Mordred want to run for cover, instead he came in and bowed to her like any loyal knight.

"Milady?"

"Prepare our best knights. We need to make my dear brother feel welcome here. And then once both Emrys and Arthur are dead Camelot is ours for the taking." She said with a small psychotic giggle, Mordred smirked along with her.

Their knights moved quickly, setting up defenses and preparing for siege. But it wasn't fast enough for Morgana. Arthur would be here in a day and he would not leave here alive. None of them would. She'd make sure of that.

.oo0oo.

Merlin and Arthur tried to sneak back into camp without being noticed. And failed. The knights had all woken shortly after they had left to find their king and favorite servant missing.

"And where were you two?" Gwaine smirked; still not ready to give up on his little joke.

Arthur and Merlin glared at him stepping away from each other "None of your business." They mumbled simultaneously each shooting looks at the other.

Merlin's begged him not to tell the others about his magic

Arthur's said, I won't, you will, and I'm still furious.

Merlin shot him a desperate stare that clearly said, how the hell am I going to explain all this?

"Go on, tell them." Arthur growled out loud.

"Tell us what?" Elyan asked looking between Arthur and Merlin. "Wait Gwaine's not really on to something is he? Because if you hurt my sister I will.."

"NO!" they both shouted at the same time.

"Elyan, I love your sister with all my heart, and I wouldn't do anything to hurt her." Arthur said forgetting he was in Merlin's body.

Shocked and almost angry expressions came from all the knights "You what?" They gasped simultaneously

"Okay explanation time!" Merlin cheered with fake enthusiasm, jumping between Arthur and the knights. "See we've had a bit of a problem for the past few days, I'm not really Arthur. I'm Merlin. I woke up in the Royal Prat's body a few days ago and haven't really figured out how to get out."

The knights had heard stranger things but it was still a little far-fetched

"Prove it." Gwaine said to what looked like Arthur. "Tell me something only Merlin knows about me."

"You're a noble." Merlin answered promptly.

All the knights and Arthur stared at Gwaine.

"Yup, that's Merlin." Gwaine said softly shifting uncomfortably under the weight of all the stares.

"You never told us." Leon said.

"Didn't want too." Gwaine shrugged.

"Merlin also has another thing he wants to confess to you." Arthur said prompting him with a steel edge to his voice.

"No, I really don't." Merlin said but one glare from Arthur told him he had no choice in the matter.

"Arthur, care to demonstrate?" he asked quietly ignoring the knights mystified looks.

Arthur grumbled a little and came over, glaring daggers at his servant.

"What do I say?" He asked flatly.

Merlin thought for a moment and then asked Percival to hand Arthur a torch, which he did rather puzzled.

"Ok, before we do this I want you to know that this is all me. When we switched bodies Arthur and I got each other's strengths too. I got his strength and he got my-Well you'll see."

"Leohtbora" Merlin said slowly and Arthur repeated him. His eyes flashed gold and the torch was lit ablaze.

The knights instinctively drew their swords and looked between the pair murderously.

"I can explain." Merlin said quickly.

"You'd better."

A/N: The spells used in this are taken from the actual show. The first spell was used by Merlin when he was dying of poison to get Arthur out of the cave. The second spell was one of his many, many fire spells and used to light a torch in Excalibur. I hope to update soon sorry about the wait.