Summary: Nimueh is out for revenge, just like she always is. This time, she has come up with a plan that is out of her world. Literally. Merlin and Arthur fall into her carefully laid trap, and they are transported to Hogwarts! Too bad for Nimueh, they were sent to Hogwarts instead of to the a secret camp, where she wanted them to be. Harry and Draco must work out their differences and, alongside Arthur and Merlin, they must defeat Voldemort, who has gained more powers from a secret ally.

This crossover ignores Harry Potter 5-7. Maybe some spoilers from Merlin, so be careful!

Pairings: Arthur/Merlin, Harry/Draco, Ron/Hermione, Seamus/Dean, Ginny/Neville
(my pairings never seem to change)

Warnings:, spoilers, slash, mild violence.

Rating: M

Disclaimer: No, I do not own Harry Potter OR Merlin.

Chapter 1: Dreams

Nimueh gave a grim smile, slowly waving her hand over the sparkling water beneath her. The time had finally come. Though it had cost her greatly- both physically and mentally-she had finally found a permanent way to get rid of the obnoxious Prince Arthur and that detestable idiot-of-a-wizard Merlin.

Nimueh knew that once King Uther realized his son had disappeared, he would stop at nothing to get him back. Since he was such a paranoid bastard, he'd think that his son had been taken by sorcerers and order a purge of all suspects in his kingdom. The people would most likely revolt against yet another mass execution; Camelot would be thrown into chaos, and Nimueh would then make her move.

Perfect,she thought to herself, a smirk grazing her lips. Nimueh glanced into the crystal bowl, watching the image flit across the water. Arthur and Merlin would be there soon, on another one of those pointless hunting trips. All she had to do was wait a couple more minutes, and her job would be done. She whispered an incantation, setting her hand gently upon the water. With her other hand, she grabbed the gleaming dagger beside the bowl, and pricked her finger lightly, watching as the blood slowly dripped into the bowl. With one more incantation, a creature appeared in the water. Nimueh chuckled and with one flick of her hand, the creature obediently walked into the middle of the forest.

Two figures suddenly appeared in the side of crystal bowl, and the smile on Nimueh's face widened. Arthur had a crossbow in his hand, and she watched as he slowly came up behind his prey. Too bad for him, it was not a real creature, but instead a mere shadow Nimueh had conjured to lure Arthur over. Merlin, as always, stayed at least ten feet behind Arthur, gripping his wooden spear as he looked around anxiously.

"Coward," Nimueh spat out, gripping the pristine bowl tightly.

Merlin suddenly looked up, as if he had heard her. Of course, that would be impossible. Nimueh scoffed at the picture, picking up the object at her side. It was quite the unique object; it was like a miniature hourglass, except for the thin, gold chain that snaked around it. The chain seemed to glisten and move in the glow from the crystal bowl as Nimueh fingered it thoughtfully. She had gone to great lengths to get this so called Time Turner, but it was all worth it. She let the Time Turner slowly fall from her hand, watching as the gold chain slipped through her fingers until it finally landed in the water with a soft plop. She waved her hand over the water once again with a soft hiss of words.

"Permoveo ut silva."

The Time Turner slowly faded into the water.

The sun slowly made its way through the clouds of the night, shining across the cobblestone in the courtyard of Camelot. It shined through all the windows, awakening those ready to start their day. In a room off the court physician's chambers, one boy by the name of Merlin tossed and turned in his bed. "No...No..." He moaned, reaching out for something in front of him.

He had no idea where he was- it was a castle, but it was most certainly not Camelot. Maybe they were in Mercia? No, no it couldn't be. The land looked so foreign...Noises suddenly popped up behind Merlin; people were yelling nonsense. "Stupefy!" He heard someone cry out. He turned around just in time to see a red light hit someone smack dab in the chest, and watched that person fall to the ground. Merlin could only stare out in horror. What was this madness?

Lights flashed this way and that; there was a swarm of people running around, holding what seemed to be sticks. And that was when Arthur appeared in his dream, wielding his trusty sword. What was going on? A cloaked figure suddenly appeared in front of him, pointing his stick at him. "Avada Kadavra." A green light shot his way- Merlin didn't know what it was, but he knew it wasn't something good. He could only stand, petrified. He heard Arthur give a yell running towards him. No...Arthur was going to try to save him...he couldn't...he had to rule Camelot..."Don't Arthur! No! Go!" He braced himself to get hit, but then Arthur launched himself at the light. "NO!" Merlin heard himself scream. He watched Arthur fall to the ground, his body limp; someone was yelling his name-

"Merlin!" The voice was accompanied by the sudden splash of ice cold water. Merlin shot up with a start, his eyes wild. "Merlin! Whats wrong? Are you okay?"

Merlin focused his eyes on the person in front of him, willing his heart to stop beating so hard. "Oh, yeah...yeah. I'm fine Gaius. Just a bad dream." He muttered, pulling himself out of bed. He shook his now wet head with a scowl. "Was that really necessary, Gauis? Couldn't you have just, I don't know...slapped me instead? Saved us both the mess?"

Gaius chuckled. "You better hurry up and get ready, Merlin. You're going to be late for your hunting trip," he said, walking out of the room.

Making sure he was out of the room, Merlin waved a hand over himself with a whisper. "Ofádrýgan."

"I heard that! No magic, Merlin!"

Merlin smiled as he got up, looking at himself to make sure he looked presentable. He didn't know why he did it; his clothes were just going to get dirty anyways. He just felt like he had to prove himself to Arthur. Satisfied, he strode out of his room and past where Gaius was sitting to eat his morning porridge.

"Aren't you going to have breakfast, Merlin?" Gaius asked, his spoon paused in the air.

"No, no I'm good, Gauis. Don't want to be late!" He put on a cheery smile, waving goodbye. Once he was out in the hall, he dropped the smile, and a frown graced his lips. The dream worried him...it had seemed too real...but honestly, did he really expect people with sticks shooting lights at other people to be real?

It was just a crazy dream, Merlin reassured himself. Feeling a bit better, he set off for Arthur's chambers at a brisk pace.

That morning, Prince Arthur Pendragon had also been having crazy dreams.

He was in unknown lands. It felt like he was supposed to know where he was, but he couldn't put his finger on it quite yet. There were crowds of people surrounding him. It was pitch black outside, except for the flashes of light shooting across the field. Arthur could only see faint images of the people around him, like they were ghosts.

A sudden cry tore him from his observations, and his head whipped to the left. There was a girl on the ground, with fiery red hair, clutching at her bleeding and useless arm. A cloaked man stood above her, pointing a...stick at her. Arthur's legs seemed to act of his own accord. He knew this girl...he couldn't let her die...He saw the cloaked man's lips move- before he could finish, Arthur stabbed him in the back, letting the blade drive all the way through. He tore the blade back out as the man fell the ground with a gasp, clutching the hole in his stomach. Another sight distracted him from helping the girl before him. Merlin...The idiot was just standing there!

Arthur slowly made his way towards him. That was when he saw another cloaked man appear in front of Merlin, his stick pointed straight at his chest. "No!" He yelled. Arthur knew he didn't have time to kill this man before he killed Merlin. He had to save Merlin though. Without even thinking, he ran towards Merlin, towards the light shooting towards him. Merlin was screaming at him, but he ignored it. He jumped as far as he could, stretching his fingers out. The light hit him in the chest- the last thing he heard was Merlin's screaming his name.

At the time that Arthur was having his dream, Merlin was still in the halls, having decided to just take his time. He whistled lightly, making his way over to the corridor where both Arthur and Morgana's chambers resided. He didn't notice Gwen exit Morgana's room, holding a tray cleaned of food. He kept on whistling, stepping in front of Arthur's door.

"I didn't know you where a whistler, Merlin." Gwen commented, trying to keep the smile off her face.

Merlin cut off abruptly, a blush covering his cheeks. "No, no. You must've been mistaken, Gwen. That most definitely was not me. It...It was-"

"I didn't say it was a bad thing. You're actually not too bad."

Merlin coughed slightly. He never did know why he was so awkward around Gwen, or anyone for that matter. His words always came out garbled and...unplanned. "Well, uh, I've got to tend to Arthur...so..." He gave a goofy smile, opening the door.

Gwen finally let the smile grow on her face, waving at him fondly. "I'll see you later then, Merlin."

"Yep, I mean, yes you will Gwen," he replied as he closed the door. Merlin turned towards Arthur, prepared to be given a ranting for being late. But, he soon realized that Arthur had yet to awake. At first, he was filled with joyful glee- Arthur forgot to wake up! And oh, how funny he looked sleeping. This was definitely a moment to capture!

A moan from the bed startled him, and he gave a gasp when he saw Arthur writhing in the sheets. Of course, being the boy he was, Merlin's thoughts automatically went down into the gutter. Could it be that Arthur was in bed wanking? But that thought was automatically ruled out when Merlin realized that Arthur's face was scrunched up in pain. He ran to the bed.

"Arthur?" He asked, trying to shake him awake. "Arthur! Wake up!" He said, now panicking.

"No, Merlin...watch out..."

Merlin almost fell down in shock. "Arthur?" it couldn't be- was Arthur dreaming about the sa-

Arthur suddenly shot straight up in bed, his chest heaving.