Kara stood next to Gwen in the council chamber behind Morgana. 'why are we again?' She whispered over to the woman next to her.

'The lady Catrina of the House of Tregor is in Camelot' Gwen explained. But Kara looked at her confused.

'But The house of Tregor fell to invaders' she protested, Gwen shrugged as the door opened. A beautiful woman entered with honey brown locks.

'Lady Catrina, is it really you?' Uther spoke standing.

'I can hardly believe it myself.' She spoke bowing to the the King.

'We had tidings from the north that the House of Tregor had fallen to invaders.'

'All that you heard was true, My Lord, and worse.' She spoke sadly.

'Your father, the King?' Uther questioned stepping forward.

'Gone, Sire. The enemy attacked without warning. We were outnumbered five to one. He could not endure. I would never have survived had it not been for my faithful servant Jonas. But we did survive, and we have made it this far...' Catrina almost collapsed but uther grabbed hold of her.

Kara furrowed her eyebrows as Catarina continued to speak 'Forgive me, My Lord. I fear my trials have taken a toll.'

'Your sufferings are beyond imagining, My Lady. It would be an honour to help you in any way we can.' Uther stated

'A bed for the night would be most welcome.'

'And consider yourselves our esteemed guests. It's the least we can do.' He said glancing at jonas as well, who bowed his head respectively.

'Thank you.' Catarina whispered as they were being lead away shown to their rooms. Kara kept her eyes narrowed at the woman a denser ant, there was something off about the two, something not quite right.

Morgana had asked Kara if she would serve dinner tonight and as soon as she found Carrina would be there she jumped at the chance. She wanted to understand more on why she got a bad feeling from the woman.

She pours my wine into uther's goblet before stepping back,waiting for when she would be needed again

'Well, this is wonderful. Thank you.' Catarina spoke

'It's an honour. The Houses of Tregor and Pendragon have been allies for as...well, as long as anyone can remember.' Uther stated and Kara realised that was why he took her in with open arms, well one of the reasons at least.

'My father often spoke of you, My Lord.'

'And I will remember him always.' Uther said raising a glass before drinking.

'I'm sorry I didn't get the chance to meet him' Arthur spoke.

'I'm sorry too. For the House of Tregor is no more.' She speaks pushing the plate of food away as if she suddenly lost her appetite, which was understandable of course.

'Well, no, Catrina, it lives on in you.' Uther protested.

'I only wish that were true.' She sighs,

'It is, My Lady. Your courage, your modesty. And you are as you always were, ever since you were a child.' Kara hid the giggle behind her hand at Arthur's slightly horrified expression.

'Ah, I fear I am much changed since then, my Lord.'

'Oh, yes, it's true. You are far more beautiful now.' He says and Kara found it harder to stifle her giggle at the complete horror on Arthur face when he realised his father was flirting.

Arthur quickly yawns a fake yawn 'I'm sorry, hard day's training. If you'll excuse me.' He says getting up to leave

'Of course.'

'Arthur.' Uther nods at his son.

'I should retire myself. Kara' she says and Kara nods, putting the jug down.

'Morgana.' Uther nods as Kara and Morgana leave the room. Kara practically burst into laughter as soon as the doors closed.

'Never did I think I think I'd see the day where uther tried to charm a woman's she said between laughs.

'Well i think it's sweet' Morgana protested, 'I don't think Arthur thinks the same' Kara adds thinking back to the appalled expression on his face, causing another fit of giggles to escape. Morgana simply rolled her eyes with a smile at her friend as she retired to her room, for bed.

Kara sat in gaius's chambers, reading one of gaius's many books while the older man made a potion.

'There's something really different about the Lady Catrina.' Merlin stated and she looked up thinking maybe he felt it too

'Oh?'

'Most of Uther's guests just treat me like I'm dirt in their shoes, but she was really nice, even after all she's been through.' Kara rolled her eyes, seeing he had just become another man entranced by good looks.

'Yes. She always was very gracious.' Gaius spoke.

'You've met her before?' Kara asked

'Oh, it was many years ago. I doubt that she would remember. Now, Merlin, I've got a job for you.'

'Does it ever end?' Merlin grains and Kara laughs.

'Give this to the Lady Catrina with my compliments.' Gaius said

'What is it?' Merlin asked.

'She'll know what it is.' Gaius implied

'But what is it?' Gaius sent him a withering look 'Okay, okay.'

Merlin entered again, outing the still full bottle on the table in front of gaius 'She didn't ask for it. She didn't need it. She didn't even want it.'

'Interesting.' Gaius spoke

'If you say so.'

'When I treated her as a child, it was for an incurable disease. Catrina had a rare bone disorder affecting her joints. She often had difficulty walking, especially after a long ride. My tonic was the only thing that brought her relief.'

'She walks as well as you or I.'

'So I noticed.' Gaius said and Kara smiled

'Thank you, I thought I was going mad believing there to be something wrong about the two of them'

'So...the tonic was some kind of test?' Merlin questions gaius.

'Indeed. And I'm starting to wonder if the Lady Catrina is really the Lady Catrina at all.'

'Wait hang on, who else would she be?' Kara questions.

'Who indeed'

Merlin and Kara both watch Uther and Catrina leave the next day, Merlin carrying a laundry basket before they enter the guest room, to see if there was anything that would give away that Catrina wasn't really Catrina.

An awful stench fills the air and both Merlin and Kara cough at the smell of it before looking around.

'Can I help you?' A voice speaks and they both look up to see jonas standing there.

'We were just changing the sheets' Kara lies quickly.

'Please, go ahead. Don't let me get in your way.' He says and Merlin flattens his hand over the sheet.

'All done. Thank you.' He says and the two hurry to leave but jonas stops Merlin.

'Merlin. Aren't you forgetting something?' He says and kara' sees widen cause when he turns she sees a green forked tail underneath his robes. Jonas hold out the laundry basket and Merlin nods, taking it.

The servants leave, Kara shivering involuntarily, 'that guy seriously gives me the creeps' she says and Merlin nods.

The two servants enter the physicians chambers, Gaius standing immediately 'What did you find?'

'Something wasn't right in there. There was this strange smell, and I could've sworn the Lady Catrina's bed hadn't been slept in. And there was something else.' Merlin says

'Oh?'

'Jonas. As I was leaving, I thought I saw something...this is gonna sound mad, but it looked like Jonas had a tail.'

'A tail? You sure?' Gaius said surprised and Kara nods 'I saw it too'

'We must keep an eye on her. A very close eye.' Gaius states and the tow nod understandingly before Kara excuses herself to go and complete her chores for the day.

Night fell and Kara stood with Merlin behind one of the castle drapes waiting for Catrina to leave. The woman seemed angry as she tossed a platter of fruit off one the tables. She disappears outside and the two watch as she cross the square,

Kara thought this an extremely bad idea as they stood in atthur's room while the prince slept. Merlin grabbed the mirror of the bedside table and walked over to whindow.

Kara froze as the window pane made a noise as Merlin opened and Arthur turned over in his sleep but didn't wake.

'Scéawere, folge min bebod.'Merlin mutters, eyes flashing and the mirror floated in mid-air before he sent it down. Kara gasped in horror at the ugly troll woman in catrina's bedroom but she heard a lose and quickly disappeared between one of the curtains.

'Merlin.' A few seconds later Arthur speaks and Merlin spins around the mirror crashing to the floor. Kara winced at the sound from behind the drapes.

'I have no doubt, Merlin, that you have prepared a very good explanation for this.'

'Yes. No. Er...' Merlin stutters and Kara felt lightly bad for hiding but it would be stranger if she was in Arthur's line of sigh as well.

'Apparently I'm wrong.' Arthur shoved Merlin out the way and looked out the window, Kara held her breath seeing who close the prince was.

'Please tell me you weren't spying on Lady Catrina.' Arthur says seeing the broken mirror.

'It's not what it seems.' Merlin protested.

'Yes, Merlin. It's exactly what it seems. You have led a sheltered life, you have no social skills whatsoever, and Catrina is, I admit, an attractive woman. I understand completely. And if I ever find you doing it again, I'll feed you to the dogs. Do I make myself clear?' He says

'Yes, absolutely, Sire.' Merlin says before leaving and Kara found herself stuck behind the drapes. She heard Arthur close the window and she waited a while.

When she peeked through the drapes she saw Arthur had fallen back to sleep onto of the covers, honestly she sighed moving out from the drapes as quietly as she could. She was going to leave but when a thought hit her.

She rolled her eyes at herself, sighing quietly before she grabbed an extra blanket from the cupboard and draped it over the sleeping prince.

She left quickly after that and she sat with Gaius waiting for Merlin to return and when he did, he look disgusted and horrified at the same time. The sorcerers explained what they saw, Merlin more then Kara.

'What you saw is seldom seen, Merlin. Trolls despise all other living things, especially humans. They prefer to lurk in the darkness of their nests, feasting on rotten filth.' Gaius explained.

'And Jonas? Is he a troll too?' Merlin questions.

'Who can tell what manner of creature he is.'

'It makes no sense. If trolls like to lurk in their caves so much , what's this one doing in Camelot?' Merlin wonders and Kara nods turning to gaius thinking the same thing.

'Trolls are greedy. Lady Catrina's like the rest of her kind; she lusts after wealth and power.'

'Uther's wealth and power.' Kara points out and gaius sits back at the realisation.

'We've reached the point of no return. Uther has to be told.' He says standing.

'You're going to tell Uther that his lady friend's a troll?' Merlin questions in disbelief.

'That's exactly what I'm going to do.' Gaius said

'Good luck.' Merlin scoffs and gaius nods 'Thank you, Merlin.' Before he disappears.

'We're going to be saying it old you so aren't we?' Kara says and Merlin nods 'yep'

'Well I must go' she says and pats the boy on the shoulder before leaving to attend to her chores.

The next day Merlin and Kara sat in the physicians chambers 'It's no good. I can tell him she's a troll until I'm blue in the face, he simply won't listen. He sees a charming, beautiful woman.'

'Yeah, with a body like a tree trunk.' Kara adds.

'But we only know that because you saw her in the troll form.'

'So, what do we do?'

'We must open Uther's eyes, show her for what she really is.' Gaius says and the two sorcerers turn to look at him surprised.

'Using magic?' They both ask surprised.

'It's the only way to reveal her true form.' Gaius points out,

'But she never leaves his side.' Kara protests.

'I know.' Gaius said crossing his arms before looking at Merlin

'You want me to use magic in front of the King?' Merlin asks appalled.

'Yes, Merlin, I do.'

'He'd never get away with it. Uther would have him executed on the spot' Kara protested.

'I'm sorry, Merlin. I know how dangerous this is, but we cannot allow it to gain any further control over the King. Who knows what the consequences might be?'

'Just one problem. I know nothing about troll magic.' He says looking at Kara who shrugs 'don't look at me your the powerful warlock here'

'Then we have work to do.' Gaius states putting three books on the table and both Merlin and kara groaned.

Reading through the books, Kara was close to sleep, gaius already was and Merlin also didn't look far off flicking through pages.

'Here.' Merlin says slamming a hand down the book jolting the other two awake. 'The spell of revelation. By which the true nature of the thing may be revealed.' He says putting the book in front of gaius, Kara leaned over and read the spell as well.

'But this applies only to objects, things, not to living creatures.' Gaius points outs.

'I know. The principle's the same, isn't it? I have to try it. What other choice do we have?'

'Very well. But Merlin, choose your moment carefully. Trolls are vicious creatures.' There was a knock on the door.

'Come in' a knight enters 'The King requests your presence in the council chambers.'

The three glance at each, worried before gaius closes the book and they all stand up and leave. Kara takes her place in between Morgana and Gwen, sending them questioning looks, though they seemed to have no answers either.

The doors opened and uther walked in with Catrina on his arm, before resting in front of the throne.

'Thank you all for coming. You are, no doubt, wondering why I have gathered you here today. Though we live in dark times, today I bring you light, and love.' Kara stares at him, weirded out to the max. She glances at Morgana and Gwen who look equally surprised.

'It gives me greatest pleasure to inform you that the Houses of Tregor and Pendragon are to be united in the closest bond of all. I am to marry Lady Catrina of Tregor.' Others clap while Kara glances at Merlin and gaius in alarm.

Catrina whispers something in uther's ear 'I am to marry Lady Catrina tomorrow.' The court claps and Kara sends Merlin a look, he nods moving backwards against the wall.

'This union heralds a new dawn for the kingdom, a new beginning and a new queen for all here in Camelot' Kara slowly sees the bones in catrina's face changing but it does nothing to expose the troll she is.

'I could not hope to have made a better match. I hope you will all share in our joy. Thank you.' The crowd claps as the King and Catrina move forward while Kara moves backwards and pats merlin's shoulder.

'Are you alright?' She asks seeing slight exhaustion in his eyes.

'Fine, he nods but she sees the disappointment in his eyes as the spell didn't work.

'We'll find another way' she reassured him as they joined up with gaius and left the chamber room.

'I'm sorry. I tried. I gave it everything I had.' Merlin apologised

'It's not your fault, Merlin. You did your best.'

'The spell of revelation is powerful magic. And she could feel it, I could see she could feel it.' Kara pointed out remembering how the smile dropped off catrina's face.

'Her magic must be strong, indeed, to be able to resist you. Where are you going?'

'To see Arthur! He's our only hope!' Merlin called and Kara looked at gaius before he nodded and she ran after him.

Merlin approached Arthur hesitantly, Kara standing a bit further behind.

'Yes?' Arthur asks fastening his sword.

'Arthur. I'm going to tell you something. It's not going to be easy.'

'Right...'

'It concerns the Lady Catrina.' Merlin states.

'You're not using my chambers to spy on her again.' Kara hid her smile, he's never going to live that down.

'Oh, no. Trust me, I saw everything I needed to see.' Merlin said

'I'm sure you did.'

'Arthur. She's a troll.' Merlin blurts out and Arthur laughs.

'She's not that bad.'

'Arthur it's true she is an actual troll' Kara says backing up Merlin.

'I know what you're both trying to do, and I appreciate it. But it's not about whether I like her or not, it's about what makes my father happy. And when they announced the wedding today, I realised that Lady Catrina does just that. She makes him happy.'

'Well, he won't be so damn happy when he discovers his wife's a fruit munching monster.' Merlin pointed out

'That's enough, Merlin.' Arthur says.

'But...' Kara begins but Arthur interupts.

'She's the future queen of Camelot whether you like it or not. So you better get used to it.' Arthur says before leaving and Kara and Merlin sigh.

'Well that went well' she says sarcastically and he nods rolling his eyes before the two sorcerers leave.

Merlin found Kara, during the night and he told her what Jonas told him. 'Then what are we waiting for lets go' she says and they both leave the castle and sneak into the trolls nest. Merlin carries a torch while they walk and Kara immediately closes at the smell, covering her face with her arm, Merlin doing the same.

They reach the next and begin to dig around, Kara trying to stop herself from heaving as she did.

'You won't find anything in there.' They turn seeing the troll standing there, realising it was a trap. 'You may possess some magic, wretch, but you are no match for me.' The two race for the exit only for the troll to magically collapse the tunnel entrance. They both fall to the ground as the rocks tumble down.

'Are you alright?' Merlin asks Kara and she groans in response, lifting herself up. They stare at the Rock covered exit in horror, trying to move the rocks but found there was no use. The whole night consisted of them trying different spells to explode the rocks out of the way but nothing worked.

'Ic ábíetee pæt stánhol' Merlin keeps repeating while Kara racks her brain for another spell. Finally she comes to a conclusion.

'Wait Merlin, together' she says and he nods understanding. They both stand in front of the exit raising their hands.

'Ic ábíetee pæt stánhol!' They yell, eyes flashing gold. A sonic boom transmits and blows the rocks out of the exit.

'Yes!' Kara cheers as they smile happily before they climb over the ricks racing out of the tunnels. They bolt run through the courtyard corridor knocking people over as they did but the matter at hand was more important then manners.

Merlin and Kara dash through the Red Ribbon Chamber to reach the throne room, but Jonas steps in their way.

'Master Merlin, can I help you? Are you lost?' He says innocently.

'Step aside, Jonas.' Merlin orders.

'The King's wedding is by invitation only.' Jonas says and Merlin rushes forward 'I said, get out of my way!'

Jonas grips his arm pushing him backwards 'So sorry, but I regret to say, that you are not invited.' He shoves Merlin back and Kara helps the boy help up as the two sorcerers face him. Merlin runs forward only to be thrown to the side. Kara dashes forward as well, landing in a punch before he's thrown back into a wall.

Jonas goes for Merlin and picks him up 'Leave my mistress alone!' Merlin kicks at his stomach knocking them both backwards.

'Ic þé wiþdríf!' Kara yells, her eyes flashing gold, sending Jonas crashing against the wall, a vase knocking him out as it smashes against his head.

'Nicely done' Merlin says and she nods before they bolt for the throne room.

The two sorcerers burst in to the throne room but it was too late. Uther and Catrina kissed at the front of the room with the court applauding. Catrina scowls when she sees Merlin. Kara sighs defeated but glares coldly at the troll when she's sees the two of them. It wasn't over yet, she promised.