"Did we really had to wander off by ourselves?" Merlin asked and looked around him wearily, it wasn't that he was afraid precisely, it's just that, well. they were in a forest okay? And eventhough Merlin was this almighty sorcerer who had control over the weather and other complicated things, he really and I mean really didn't want to be stuck in a dark forest full with zombies with only golden boy for company, especially when it was about to rain.
Arthur was walking a few steps ahead of him, waving his stick ("it's not a stick Merlin, it's a shotgun!") and looking for some unfortunate zombies to kill.
"How can you kill a zombie if it's already dead?" Merlin asked.
Arthur sighed and pinched the bridge of his nose.
"You just shoot it in the head."
"But it's allready dead, how can it tell that you shot it in the head?" Merlin insisted.
"It's whole nerve system is located in it's head and so when that's gone it dies," Arthur considered it for a moment before adding. "Again."
Merlin tilted his head to one side and thought about it and Arthur wasn't looking at how the sun played across his face, he most certainly didn't.
"That doesn't make any sense." He finally said and looked at Arthur.
"Zombies doesn't have nerves, at all, they don't feel, so how can they feel if they were shot in the head?" Arthur threw his hands in the air and stalked away, grumbling to himself about idiotic princes.
"Maybe we should go back." Merlin suggested after a while.
"And why would we do that?" Arthur asked. "Are you afraid? Don't worry, I'll protect you." He added with a teasing smile and Merlin rolled his eyes.
"I can protect myself quite well, thank you very much, it's just that it is going to rain and I don't want to-"
"It's not going to rain!" Arthur protested. "The sun is out and everything."
Merlin sighed and looked at Arthur, definitely not noticing the way his hair was glistening in the sun, most definitely not.
"Look golden boy, I know a storm when I feel it and this is going to be a big one so can we please just go back to the castle?"
Arthur simply turned around and walked away, Merlin followed him while mumbling about prat like princes.

Half an hour later they were soaked to the bone and shivering in a little half ruined room inside of a ruined something, Arthur wasn't sure what it was but it was ruined.
Merlin was standing near to the hearth and mumbled something, his eyes flashed gold and a fire started, he turned to Arthur and simply looked at him.
Arthur rolled his eyes. "Go on, say it."
Merlin smirked. "What? I wasn't going to say anything."
"Like I'm going to believe that. Say it you know you want to."
"Well if you insist." Merlin said with a small smile. "I told you you, told you, told you." He finished in a small song.
Arthur couldn't stop himself and he laughed.
"Fine so you were right, it rains. so what?"
"So," Merlin stressed. "We should have went back when I said we should! Now we are stuck in this room and have to wait for the rain to stop!" He crossed his hands across his chest and Arthur tried very hard not to notice the way his wet cloths stretched over his lean arms. "I'm, that is to say I," Arthur started and faltered. "I'm so- I'm." Merlin was looking at him expectantly, his eyebrow raised. "Yes?"
"I'm sorry alright? God can you be any more annoying?" He said.
"Annoying? Me? You are the one who dragged me into the wild-" And Arthur didn't imagine dragging Merlin into the wild for something different from zombie hunt, he simply didn't. "-and then ignored me for half the trip and then-"
"Shush." Arthur said suddenly and Merlin stared at him.
"What? How dare you, you, you clotpole!" Merlin snapped back, his face flushed. Arthur had two seconds to wonder if Merlin will have that beautiful flush anywhere else on his body before he heard it again, a low grown and the shuffle of feet, which could only mean- "Zombies." Arthur said, pulling out his shotgun.
"What?" Merlin didn't squeaked, he didn't.
"Shut up." Arthur droned and moved closer to him. "They can hear you."
"What? They?" Merlin whispered back, visibly pale.
"Zombies hunt in a pack,if there is one there are about four after it." Arthur whispered back.
"How do we lose them?" Merlin said, his voice shaking,he never met a zombie and he didn't want to either.
"We don't. Once they catch your scent they hunt you down, like wolfs do."
Merlin stared at him. "Is that suppose to be reassuring? Because let me tell you something- it's not!"
Arthur chuckled low in his throat and sobered quickly when the noises grew louder, now they both heard it: Moans and groans and growls and Merlin shrank back, away from the half broken door and attached himself to Arthur's side, Arthur's arm came up automatically to wrap around his waist, pulling him closer.
"It's going to be alright." He murmured into Merlin's hair.
Merlin wasn't looking at him, he was staring at the door where two black eyes appeared and stared at them, Arthur knew immediately that something was wrong-zombies had red eyes.
"Merlin," He said urgently. "What?" Merlin said back, his voice shaking just a bit.
"Get behind me so I can shoot it in the head." Arthur said and pushed Merlin gently.
Merlin went without resisting and Arthur took aim and shot.
The zombie fall down with a soft thud and they both stared at it.
"Is it dead dead?" Merlin asked quietly.
"I think so." Said Arthur and made to move towards it to check the body.
"No!" Merlin yelled and grabbed his hand. "Don't go near it! What if it's only plays dead, like a, a dog, or something?"
"Don't be daft Merlin. It's a zombie, it doesn't have the brain to play dead!"
"But-"
Before Merlin finished his sentence they heard a low grown and stared in horror as the zombie lifted himself up and shook his head until the bullet fall out.
"What the-" Arthur started.
"See?" Merlin said. "Play dead."
"Right." Arthur nodded to himself and switched the gun mode.
"This should do it." He fired out and a small bomb left the gun and plunged itself in the zombie's forehead.
"What is that?" Merlin asked.
"It's a bomb, so we should find cover." Arthur said quickly and pulled Merlin's hand.
"No need for that." Merlin's eyes flashed gold and a blue wall of shimmering light appeared before them, Arthur reached out to touch it gently and the light curled softly around his fingers. "Don't touch it." Merlin said, sounding a bit breathless.
Arthur turned to look at him and there was this flush on his cheeks again and Arthur longed to touch that.
"Why not?" He asked softly, his eyes glued to Merlin's sharp cheekbones and the curve of his lips.
"Because, because it tickles." Merlin said quietly and the flush deepened.
"It tickles?" Arthur said, one eyebrow raised skeptically.
"Yes. My magic and I are attached."
"Really?" Arthur said, his voice dropping a bit and very carefully, without taking his eyes off Merlin's, he reached out and caressed the blue light.
Merlin gasped and his mouth fall open.
"Wha-what, what are you doing?" He asked, his eyes darting from Arthur's hand to his eyes and back.
"Well-" Arthur started to say when a sudden boom went off and debris crushed into the barrier.
Merlin closed his eyes and stretched his hand, mumbling something under his breath. When the smoke cleared the zombie was laying on the floor, headless.
"Well," Merlin said cheerful. "I bet he is dead dead now." And he smiled brightly at Arthur who moved closer.
"I guess so."
"A-Arthur?"
"Mhm." Arthur mumbled and moved even closer, forcing Merlin to take a step back.
"Don't you think we should get out of here? You said they are hunting in packs?" Merlin sounded small and a bit breathless and Arthur couldn't stop himself, he bent down towards Merlin's plump lips when a voice behind him made him stop.
A groan, a familiar one and Merlin's eyes weren't on him but on something behind him, they were wide and a bit frightened.
"Arthur? I don't think it's supposed to be doing that." He whispered.
Arthur turned slowly to find out that, their zombie was not only very much alive and not dead dead like he was supposed to be but he also had two . Arthur's eyes widened and he stared at it while the zombie made it's way towards them, slowly making his way through the debris strewn floor.
"Arthur? We should go, like now. We really need to go." Merlin was pulling on his arm and dragging him backwards.
"That's the only exit." Arthur protested.
"Not necessarily." Merlin smiled and the wall behind them exploded. "Let's go."
They dashed through the opened wall and down the stairs that were behind it, down and down, further into the ruined keep or whatever it was until there was nowhere to go.
"We are stuck." Merlin commented.
"Yes." Arthur agreed.
"Well I refuse to die at the hands of some blasted zombie so let's think. Does it always grow a second head when you blow up the first one?"
"No." Arthur shook his head.
"So, it's some sort of, what, a new kind of them?" Merlin sounded disbelieving.
"I don't know,never seen it before."
"Great, just my luck to be haunted down by some new kind of a monster."
"At least you've got me!" Arthur said happily, expecting Merlin to roll his eyes and snort, but Merlin just looked at him, his eyes softening and smiled a bit, Arthur's heart melt down.
"Yeah, at least I've got you, a golden, prat like prince but a prince nonetheless.
Arthur was about to say something or rather do something, like pinning Merlin to the wall and kiss him within an inch of his life because there was no way he would die without kissing Merlin at least once.
But Merlin had other plans and he started pacing.
"So, it's not usually growing it's head back and it didn't only grew one head but two...why does it sound so familiar?"
Arthur's eyes narrowed. "You really don't know?"
"Huh?" Merlin's face was filled with confusion.
"That's like the Hydra, chop off it's head and it will grow two instead." Arthur song-sang.

"Oh! Of course! Why didn't I think of that?" Merlin was smiling brightly now and Arthur had to restrain himself not to pounce on him.
"So, how do we stop it?" He asked instead.
"Well," Merlin started. "We need to cut it's head off-"
"That didn't work so well last time." Arthur remarked dryly.
"Yes well, this time we'll singe the flesh afterward." He said simply.
Arthur stared at him. "And how are we going to do that?"
Merlin smiled. "Lucky for you, you are stuck with the most powerful warlock in Avalon, it's a child play for me."
"That's... good to know." Arthur said finally.
And then it was a blurry of movements when the zombies arrived in all their glory and Arthur was busy with shooting their heads off and keeping an eye on Merlin who apparently was very capable of singing the zombies necks but reckless when it came to his own safety and Arthur thought he'd have an heart attack from the amount of times a zombie nearly got a bite of Merlin and that was something that no one, except Arthur, will do.
Eventually they finished them all of and they stood there, back to back (that was the only way to keep Merlin safe), breathing hard and staring at the six dead dead zombies (Arthur would kill Merlin for getting him to say 'dead dead' about a zombie) that lay motionless on the floor.
"Okay?" He asked Merlin, turning around to look at him.
"Yeah." Merlin breathed and shook his head. "Though my ears are ringing from your shooting, do you have to make that thing so loud?"
And Arthur laughed.

Deep in the shadows a lone figure stood shaking in front of a bowl full to the rim with water, the shaky images of Merlin and Arthur could be seen in it.
The image faded and the figure sighed before it left the room.
"My lord." It said.
"Well?"
"It, they failed. Both princes are alive and unharmed."
"What?" The tall figure shrunk back as the figure of it's master rose abruptly from his stone throne and marched over.
"How did it happened?" He demanded to know.
"Well, they, they figured out how to destroy it and together they-" The master's eyes flashed red and the tall shadow screamed in agony.
"How did they found out? How?"
"I- I- I don't know si-sire. They just did, together."
"Together." The master's lips curled in disdain.
"Soon Emrys won't be able to see the face of Camelot's heir and prince Arthur will be heartbroken enough to ruin this alliance once and for all." The cold laughter carried all the way to the heavens where the three fates were casting worried glances at each other.