I decided to turn a YouTube video/series of mine into a fanfic, some things will be slightly altered to fit the fic better.

This idea had been lingering in my mind for the longest time. You can find it on YouTube under The Merthurian Legend, it has 3 parts. Paste this link for part 1: /watch?v=qDj_N5WF4IM

Something to know beforehand. In this fic Gaius will be known as Gaius Godwin and he'll be Merlin's grandfather.

Enjoy!

My dearest Gaius,

I am delighted to announce the betrothal between my son and your grandson, and by doing so we will create an union between our two kingdoms. I will await your arrival with your grandson within the following week and then we'll discuss matters further.

Until then,

Uther Pendragon.

Gaius folds the letter with a smile and put it into the drawer of his desk. He called in a guard to fetch his grandson, there was some news to share with him.

Merlin poked his head around the door. "You've called for me, grandfather?"

Gaius looked up from his place at his desk. "Ah, Merlin, yes. Come in, I've got something to tell you." He waited until Merlin settled down against the table before he stood up.

"The thing is, Merlin." Gaius cleared his throat. "No, erm. You've heard about Camelot, right?"

"Of course," Merlin answered with a quirked eyebrow. "We went there all the time when I was little." The corner of Merlin's mouth started to quirk up. "Oh my god, what was Prince Prat's name again?"

Gaius swallowed. "Arthur."

"Oh right!" Merlin exclaimed. "Arthur. Gosh, he was such a dollophead." After a moment of silence, Merlin frowned. "But why are you bringing this up?"

Gaius wringed his hands together. "We'll… you see…"

Merlin's eyebrows knitted even more together. "Grandad, what's wrong? I haven't seen you this flustered ever since you've started to court Alice."

Gaius swallowed deeply again, trying to avoid Merlin's gaze for the following seconds. "The thing is, I… we, Uther and I, we'll we thought long about a union between our two kingdoms."

Merlin's head lowered, trying to catch where his granddad was going. "Yes, and?"

"Well, we thought the union could be formed through marriage. We thought it best if you would marry Arthur."

"Marry?!" Merlin spluttered. "Marry Arthur? Grandad, what exactly are you trying to say?"

Gaius decided to ignore Merlin slightly and continue on. "Uther has shown a certain interest towards you. And we have always known that the house of Godwin and the house of Pendragon would one day seek unity through marriage."

"But me and Arthur?" Merlin stuttered. "I haven't seen him in, what… ten years or something. Last thing I know of him was his prattish behaviour. Grandad, do you really think that time is now?"

Gaius only nodded his head with a sheepish smile. He knew Merlin would come around. Well, he hoped at least.

~oOoOo~

Gaius and Merlin saw the ivory white towers behind the treeline.

"Grandad, do you really think this is still the best idea? Think of the heirs, we're two men!"

"Oh hush Merlin, you and me both know it's possible with your powers."

Merlin scowled.

~oOoOo~

Uther stood on the platform in front of the thrones, waiting for his son to arrive. He couldn't muster up the courage these past few days to tell Arthur what exactly he had been planning, he only told him that Gaius Godwin and his grandson would come for a treaty… he hadn't exactly told him what kind of treaty, and now there was no time left. He had to tell him… but how?

Arthur soon strode into the throne room and Uther's throat suddenly felt extremely dry. Damnit, why weren't there servants with goblets around?

Arthur moved up the platform, inclining his head to greet his father. "Father,"

Uther swallowed. "Ah, Arthur. It is an exciting day."

Arthur smiled tight-lipped, eyebrow slightly raised. "Yes, If you say so."

"I hear the prince is something of a beauty."

Arthur turned a bit more to his father, studying him. "A beauty? Really?"

"Oh yes," Uther answered with a smile. Beautiful, charming, witty."

Arthur frowned. "Alright? And what does that -"

Arthur was interrupted by a guard, calling out the arrival of the lords. He quickly turned back to his father. "Father, what exactly are you trying to say?"

Uther eyed Godwin approaching him and turned to face his sons briefly. "You know that Lord Godwin is a serious ally. The strength of such a love match cannot be underestimated."

"Love!" Arthur hissed.

Uther shook his head. "Well, maybe not love. Think of it as an opponent union."

"You mean marriage?!" Arthur hissed once more.

Uther gave his son a pat on the back. "I knew you would understand." Uther then moved off the platform to his old friend.

"Father –" Arthur began, but it was no use. He saw his father already walking away with open arms towards the entering royal before he could finish his sentence. It left him alone to mumble things to himself.

"Ah, Uther." Gaius said after returning the hug and turned his body halfway and beckoned his grandson. "I'd like you to meet my grandson Merlin."

Merlin came forward and bowed politely.

Uther in the meantime motioned Arthur forward, who came dazedly forward. Still trying to wrap his head around what his father just told him.

"And this is my son, Arthur."

Uther smiled, head moving from Arthur to Merlin. "I'm sure you two will get along just fine." Then he turned to the room. "Tonight, a feast for our two guests will take place. You are all invited."

A round of cheering and applause then went around. But it seemed to escape the two princes who just stared at each other. Merlin moved closer to Arthur. "We need to talk. Now."