A/N: So the first part of this chapter had been stuck in my head for days but I wasn't even sure how to put it down. Eventually I typed it up and added a little background on what Merlin has been up to. Also I would like to personally thank Lara Smith for writing an awesome review :) Your review really made me want to get this chapter written so you could get more answers and questions lol.

Disclaimer: I do not own Merlin or Harry Potter (You'll understand when you get to it)

The last week had certainly not been the best for Arthur. It had started with the unfulfilling therapy session and idiot throwing his own coffee over him and ended with his flatmate deciding to move countries leaving him desperate for a flatmate otherwise he wouldn't be able to afford the rent. No this week had not been a good one and from Arthur's point of view it was about to get worse.

A knock on the door turned Arthur's attention from his laptop to the door. Setting the laptop down on the coffee table in front of him he got up to answer. He opened the door and instantly wished he hadn't.

"You!"

Merlin stood in the hall a smile on his face.

"Hello. Can I come in?"

Arthur didn't answer he just slammed the door shut before Merlin could even get his foot over the threshold. He moved away from the door intending to forget about the annoyance that was Merlin.

"You know...That's not way to treat a potential flatmate."

Arthur paused at Merlin's words before storming back to the door and throwing it open.

"You want to be my flatmate. I don't think so."

Merlin ignored him and walked into the flat.

"Did you not hear what I said Merlin?"

"I heard you I'm just choosing not to answer. Oh and you should close the door."

Arthur was close to knocking the smug little prat out but something told him not to. Closing the door he folded his arms across his chest and watched the intruder of his home.

"What kind of name is Merlin anyway?"

Merlin shrugged and wandered over to the kitchen area.

"What kind of name is Arthur?"

"It's...Wait! How did you know my name?"

"It was on the advertisement."

"Oh."

Arthur sat down and waited for Merlin to stop walking around the flat. Eventually the strange young man sat down on one of the arm chairs with a satisfied smile on his face.

"I like it."

"I already said you aren't moving in."

A large grin appeared on Merlin's face.

"Yeah you see...That's where you're wrong."

Arthur didn't look very impressed by the mind games the almost complete stranger was trying to pull. He wasn't even sure if he would be able to stand staying in the same room with him for very long never mind sharing a flat.

"Really? Because last time I checked I was the current tenant so I had the choice."

"I'll do the chores! I'll do the dishes, cook the food and wash your clothes for you."

Arthur was sceptical, why on earth would someone he hardly knew willingly volunteer to do all the house work just to move in.

"And I can start paying half the rent straight away."

Oh screw it.

"Your room is the one on the left."

Merlin wasn't exactly the most normal person on the planet, even his name screamed abnormal but I guess that's what happens when you're named after the most powerful sorcerer to ever live. Of course he wasn't just named after Merlin, he was Merlin. Every past thought, every feeling, every memory was Merlin.

He hadn't really known what to think when he found out he would one day be reborn far in the future to help Arthur restore the balance between good and evil. It had seemed surreal at the time but with magic anything was possible.

When it did happen and he was reborn he was gifted with all his memories direct from birth so that he could start as soon as possible to find Arthur. It wasn't as simple as Merlin planned though. Finding Arthur was like finding Excalibur in a pile of royal swords, difficult and slightly painful.

Merlin had started looking for his king when he was 18, he would have searched earlier but it seemed his mother had this idea in her head that a 16 year old wizard couldn't handle himself in the big bad world, to which he would usually reply 'have you not read harry potter?'. It also hadn't helped that Arthur had moved from his birth place Glastonbury to London when he turned 18, Glastonbury being the first place Merlin looked.

It may be known as Glastonbury now but back in his first life it was known as the isle of Avalon. Arthur had been sent off to Avalon to die and the prophecy foretold that was where he would be born again. Merlin had been lucky enough to find the children's home Arthur had been put in and they gave him, after much persuasion, the general location in London he was last know to populate.

And so Merlin spend two years of his life living in London working on a way to get himself involved in Arthurs life. Back then it had been easy, he had been given the job of manservant to Arthur so he would always be there when Arthur needed protecting. It wasn't the same anymore. In this century everyone was so much more independent, only the extremely wealthy had servants and even then they didn't have ones that followed them round all day. Merlin concluded that he would need to befriend Arthur if he was to be in his life in anyway but if their past was anything to go on it wasn't going to be easy.

The day he met Arthur again hadn't exactly gone to plan either. Destiny had intervened and Merlin found himself doing a double take as he past a small cafe just off of Bond Street. There in the cafe at the counter Arthur. Over taken by excitement that finally after all these years they were going to meet again Merlin practically ran into the cafe.

He had intended to saunter in casually, order a tea and maybe sit on the next table until the opportunity to speak to Arthur arose. That's not what happened though. What happened was he was his normal typical self and messed everything up but somehow it seemed to work out alright. The sense of déjà vu Arthur received meant Merlin had put him on the right track towards defeating the coming evil, something he wouldn't be able to do without all his memories.

Fate intervened again when he saw in the paper a few days later a room to rent and the person of contact and current tenant was Arthur Pendragon.

"Oh this is going to annoy him."

A/N: So what do you think? Review please.

Also the whole Glastonbury/Avalon thing is 100% true that is where Avalon was and still is :)