I can't decide if I should turn this story into a prank war or if I should just wrap it up after one or two more chapters… any thoughts about that?

Again I'm really sorry for any grammar mistakes and stuff I've made, and I would be really happy if you took time to tell me what you think.

I don't own Merlin.

"Oh god this is going to be so much fun" Merlin thought as he walked through the corridors towards the physician's chambers. He was really surprised when his brother showed up. It was a happy surprise of course, except the part with the water. After he went of to Camelot, Sam had been devastated. But he also understood the situation "keep the magic secret" is always rule number 1. They had stayed in contact through letters but he had missed his brother, back in Ealdor everyone knew they were twins so they couldn't do any classic twin pranks, but they were still known as the big prank masters in the small village. But here in Camelot, oh so many opportunities, they were going to have so much fun.

Merlin suddenly looked up and realised he stood in front of the familiar wooden door, now the only thing that was missing was their victim, Arthur Pendragon.

Arthur's POV.

Arthur was fuming with rage, his manservant really was an idiot, he was definitely going to pay a visit to the stocks, and the stables. And a whole lot of other nasty things.

First Merlin never shows up with breakfast so he has to ask Guinevere´s servant to get an extra plate, poor Leila, or was it Louise she was called… hmm I have to ask Guinevere later.

And then there was the incident in the lower town, When he finally finds the idiot he tries to pretend he is someone else, come on Arthur is not that stupid, twin brother his foot. Nobody tricks the fearless, amazing, handsome King Arthur Pendragon. He smiles smugly at that. Then the idiot was supposed to polish his sword, like he told him to, but he hadn't done that either. So he had to practice with a "not shining sword", which is unacceptable, he has to, no needs to have a shining sword. Everybody knows the king always has the shiniest sword.

So now he was stalking towards Gaius chambers to give his lazy, good-for-nothing manservant a piece of mind.

When he finally reaches the door, he knocks slightly, Gaius could be inside after all and there's no need to give the old man a heart attack, before walking inside. He looks around and spots Merlin sitting at the table eating something out of a bowl.

When Arthur enters he looks up and smiles and says "Hello Arthur" totally ignoring the thunderous expression on the kings slightly red face.

"Merlin, where have you been, you didn't even show up to give me breakfast this morning!" the king was starting to look like a swollen tomato and Merlin had to hold back a smile.

"Yeah sorry about that, I hope Lacey, so that's her name, could take two plates." He didn't sound sorry at all.

"Yes she did, but what about my sword? You didn't polish it, like I told you to, it was a simple request, even you could…"

"What are you talking about? You didn't tell me to polish your sword" Merlin interrupted his rant.

"Of course I did, when you were pretending to be your twin brother Sam or whatever."

Merlin suddenly became very serious "Arthur how do you know about Sam?" he asked in a solemn voice.

"What do you mean "how do I know about Sam", it was just you pretending to be someone else or something"

"No Arthur I have been here all day, and my twin brother Sam has been dead for years" Merlin looked up at him with a sad expression.

"What? But.. who..?" Arthur was really confused who was it he as talking to this morning, if it wasn't Merlin.

"It wasn't me and Sam is long dead, so either you saw a ghost or you just hit that cabbage head of yours a bit to hard." Merlin said, suddenly with a big teasing grin on his face.

"I did not…" he stopped when he saw the smug expression on his manservant's face

"Shut up"

"Of course, sire"

"Just be on time with my lunch" the king said with a smile tugging at his lips, and walked out the door, only to remember something and stuck his head back in with a big smug grin on his face. "Oh Merlin, you're definitely going to the stocks for this" and with that he closed the door and started walking down the corridor. While Merlin sat remaining at the table smiling viciously. Their plan was in motion.

As Arthur walked back to his chambers he couldn't help thinking of what Merlin said what if it was a ghost? Uhh creepy… he shook himself don't be ridiculous Arthur there are no such things as gho…. his thoughts were suddenly interrupted by a strange scary noise "Buuuuuuuhhhh!"

The king looked up to see a very familiar looking man with black hair and ice blue eyes, except Merlin was still in Gaius's chambers, and there no way he could have gotten here before him… but that means... Oh my god!

"Ahhhhh! Ghoooooosstt! Run for your lives!" The king started running and screaming through the corridor, waving his arms around like a crazy man.

"Make way for the king, evacuate the corridor women and kings first" he screamed running past a couple of servants who looked like they were barely holding back a laugh. Their king really didn't look very kingly running around like that.

Guinevere was having a very normal day, she was busy with her duties as usual and was on her way to her and Arthur's chambers, when she saw a downright hilarious sight.
Her husband was running and screaming like a mad man, with Merlin on his heels who also looked like a mad man, but that was probably because of the giant grin covering his face.

"Run Guinevere! Its Sam Merlin's evil ghostly twin brother, he is out to get us, he's going to zap us with his scary ghostly powers. RUN!"

But Guinevere didn't run and it ended with Arthur coming to a dead stop to avoid slamming into her and "Merlin" running straight into him and all of them falling to the ground in a heap of legs, and "not shining swords".

"Arthur Pendragon and Merlin Ambrosius what do you think your doing?!" Guinevere Pendragon asked angrily looking down at the confused men.

"…."

"Well?!" she insisted

"Eh I'm running for my life" Arthur said hesitantly.

"Running from what exactly" Guinevere asked rising an eyebrow.

"Merlin's evil ghostly twin brother"

"Have you been drinking Arthur?"

"What, of course not" Arthur said still on the floor with "Merlin's evil ghostly twin brother".

"I think he just hit his cabbage head a bit to hard." Came a familiar voice from behind them.

They turned around to see a very happy looking Merlin standing with his arms crossed over his chest. He walked over and helped "Merlin's evil ghostly twin brother" up and put his arm around his shoulders.

"This is Sam my, not so dead twin brother" he said smiling.

Sam grinned in response and looked at Arthur with a happy look and said "Yapp that's me"

"So there is no ghost?" Arthur asked hopefully

"There is no ghost"

"You, you… tricked me! But nobody tricks the fearless, amazing, handsome King Arthur Pendragon!" Arhur said with a put out expression.

The others just looked at him with shocked faces, did he just say that?

Guinevere was the first to recover and said, "Well it's nice to meet you Sam, but I have to go and file in some reports" and with that she turned and walked away.

"Well this was fun, but we better get going to do… stuff" the twins said and walked away.

Leaving Arthur standing in the middle of the corridor still in shock of what just happened.