Goof: The tree that Guinevere ties the piece of clothe to changes from when she ties the clothe and when Arthur finds it. When she ties it to the tree, it was tall and she ties it around the tree. But when Arthur finds it, it was much shorter and sitting on top.
Goof: After being kissed by Lamia, Sir Percival falls to the ground unconscious and his left arm can be seen flexed and resting on his chest. Seconds after, when Sir Leon is knocked out close by, Sir Percival's left arm is resting on the ground,parallel to his body. Then again in the next take, when Merlin arrives, Sir Percival's left arm is once more flexed and resting on his torso.
Goof: After the fight with the slave traders is over, Sir Percival has no material time to reach Lamia between takes.
A Lamia is a creature of magic. They were created during the wars with the Ancient Kings when the High Priestesses of the Old Religion took the blood of a girl and mingled it with that of a serpent. The creatures they created had ferocious powers: they could control the mind of a man and suck the life from him with a single embrace. The Lamia proved more deadly than their makers had ever imagined. They could also transform at will and become hideous monsters.
Mary Howden: Our village, we are blighted by a sickness. Three good men it has taken now. We have no physician, Sire. It is beyond our understanding.
Arthur: I see.
Mary Howden: Forgive me. I have no right to bring such a small matter before the king.
Arthur: You have every right. It is my responsibility to protect the people of this kingdom, whoever they may be.
Mary Howden: You'll help us?
Arthur: I will do whatever I can.
Gaius: In normal circumstances, I would be happy to travel to this village to investigate, but...
Arthur: Of course, I understand.
Gaius: Might I make a suggestion, Sire? Why not send Merlin in my place?
Gaius: He has a knowledge of the healing arts. If the diagnosis is straightforward he can prescribe a remedy.
Arthur: And what if it isn't?
Gaius: Then he can bring his findings to me.
Arthur: Findings? Merlin can't find his own backside most of the time.
Gaius: I think he is capable of much more than you imagine, Sire.
Arthur: You really think he will be able to handle the responsibility?
Gaius: Yes, Sire, I do.
Merlin: Do you really think I can do this, Gaius?
Gaius: I know you can.
Merlin: But I'm not a Physician. I don't have the knowledge you do.
Gaius: You've been working with me for many years. I suspect you know more than you think.
Merlin: I just do what you tell me to do, I don't have to make the decisions myself. These people will be putting their lives in my hands.
Gaius: I put my life in your hands every day, Merlin. As does Arthur and Gwen and all of Camelot, though they may not know it. You are the one who holds the fate of this kingdom in the balance.
Merlin: That's different. That doesn't require a lifetime of learning, just...
Gaius: Intelligence? Courage? Compassion? All I know is I have every faith in you.
(Merlin is about to depart to a distant village to act as Physician on Gaius' behalf)
Gaius: Are you ready?
Merlin: As I'll ever be.
Gwen: John, it's good to see you. We came as quickly as we could.
John Howden: Words cannot express our gratitude, Gwen. Where is Gaius?
Merlin: I'm sorry. He was needed in Camelot but I will help in any way that I can.
John Howden: We are living in fear for our lives. We need a skilled physician, not a boy!
Sir Elyan: His name is Merlin!
Gwen: He was appointed acting physician by King Arthur himself.
Merlin: (Startled) Gwaine!
Sir Gwaine: Sorry. Call of nature.
Merlin: I could have killed you!
Sir Gwaine: With a fishing rod? Sir Gwaine was slain with a fishing rod.
Sir Gwaine: That's the stuff of legends, eh?
Merlin: I'm afraid the treatments have had no effect.
John Howden: You mean they're dying?
Merlin: I'm sorry. There's something at work here that I do not understand.
John Howden: Are you suggesting sorcery?
Merlin: That's possible, yes.
John Howden: I feared as much. The other night, when I found Aldrif, I felt a... presence, an evil in the air.
Merlin: We need to get back to Gaius. Only he can explain this.
Sir Leon: Not a sound, any of you.
Sir Elyan: Looks like it.
Sir Leon: We'll skirt their camp. With any luck, we'll reach the plain unnoticed.
Sir Gwaine: Over there (Spots a girl being harassed by the bandits and charges against them. The rest follow)
Sir Percival: (Holding Lamia in his arms) Looks like we were too late.
Merlin: (Checking her eyes) No, she's...
Sir Percival: Hey, hey, hey. It's all right. It's all right. We're knights of Camelot. You're safe now. You're safe.
Gwen: Here (Undoing the bind around her wrists) My name's Gwen. What's yours?
Lamia: Lamia. My name is Lamia.
Merlin: What happened to you, Lamia?
Lamia: I... was travelling home when the bandits took me. They... (Whimpers and snuggles against Sir Percival)
Merlin: Your hands. Did they do this to you? Let me...
Lamia: No, no!
Sir Leon: Are you strong enough to ride?
Sir Leon: Then let's get out of here before they return.
Merlin: Here (Offers Lamia help to dismount. She hisses)
Sir Percival: Hey! (Pushes Merlin) Get away from her, Merlin! (Picks her in his arms) And stay away.
Gwen: Merlin, he didn't mean it. They're just tired, that's all.
(Lamia is sobbing. Sir Percival seeks her to comfort the girl)
Sir Percival: Don't worry (Stroking her face) No harm can come to you now (He hugs her and she enchants him)
(Merlin shows up, startling them. Sir Percival stands up and holds his sword out)
Merlin: Sorry. Would you like some water?
(Sir Percival and Lamia walk away from him)
Arthur: It's been two days. They should be back by now.
Agravaine: There must be some delay at Longstead, Sire.
Arthur: They would have sent word.
Agravaine: Then the bridge is down at Brechfa River.
Arthur: I already checked. A patrol passed through there yesterday.
Agravaine: Should I send some scouts out to search for them?
Arthur: Gaius, is your work done here?
Gaius: Yes, Sire. I'm satisfied the sweating sickness has all but passed.
Arthur: Then we leave for Longstead at first light.
Sir Leon: Pack your bags. We ride east with the rising sun.
Merlin: Wait... east? Camelot lies west of here.
Sir Elyan: Lamia has asked that we take her home.
Merlin: No, we need to get Gaius.
Sir Gwaine: Gaius can wait.
Merlin: We were sent to help the people of Longstead. Their lives depend on us.
Sir Leon: You dare to question our judgment? You are not a knight! You're not even a Physician. You're nothing but a servant!
Gwen: Please! Listen, Merlin's right, we have to get back to...
Sir Elyan: Stay out of this, Gwen. It is none of your business.
(About the Southron slave traders)
Arthur: What were they transporting? Some kind of an animal?
Gaius: No. These marks are made by humans. And whoever they were, they did anything they had to get out.
(Sir Leon heads towards Lamia to offer her some water but Gwaine gets the water skin from him, pushing Sir Leon away. Sir Leon grabs Sir Gwaine by the arm and stops him)
Sir Leon: Why don't you watch what you're doing?
Sir Gwaine: Why don't you watch your damn tongue?
Sir Leon: You should Learn some manners.
Sir Gwaine: Nothing I can learn from you!
Sir Leon: We'll see about that!
Merlin: Enough! What's got into you?
(Sir Leon pushes Sir Gwaine and they start fighting)
Arthur: Did you speak to the village elder?
Agravaine: It seems they left yesterday morning.
Arthur: Where were they headed?
Agravaine: Camelot, my lord.
Arthur: Something must have happened.
Agravaine: We can't go after them tonight.
Arthur: Then we ride at dawn.
Gaius: And they have been like this for four days?
John Howden: Each day they grow weaker.
Gaius: Merlin is right. This is no ordinary illness. There is sorcery at work here.
(After Merlin has stitched a wound on his arm)
Sir Leon: That needle's the size of a spear.
Merlin: I'm sorry. It's all I have.
Merlin: Leon and Gwaine. I've never known them to act like this.
Gwen: Elyan's the same. I hardly recognise him.
Merlin: I think it's something to do with her.
Merlin: The knights are like brothers, yet they fight and quarrel like foes. It started the moment we found her.
Gwen: But look at her. She's just a girl. How could she affect them this way?
Merlin: I don't know.
Arthur: Any luck with the Southron?
Gaius: I've done my best, Sire. His condition is perilous, but he lives.
Arthur: Was he able to tell us anything?
Gaius: He is a slave trader, as you suspected. They were travelling south with a girl.
Arthur: Did he say what happened to them?
Gaius: He claims they fell under some kind of spell. Quarrels and fights broke out among them. They began to suspect the girl of bewitching them. It seems they were right.
Arthur: Why? What happened?
Gaius: The girl escaped and killed them all but him.
Arthur: But how is that possible? She was just one girl.
Gaius: Not a girl, Sire. A Lamia.
Gaius: (About Lamia) A creature of magic. In their wars with the ancient kings, the high priestesses of the old religion took the blood from a girl and mingled it with that of a serpent. The creatures they created had ferocious powers. They could control the mind of a man, suck the life from him with a single embrace. Which is why none of the traders had a mark on them. But the Lamia proved more deadly than their makers had ever imagined. They could transform at will and become hideous monsters. And they kept on killing, Sire. They would not stop.
Arthur: So this girl, this creature, is still out there somewhere.
Gaius: I'm afraid so, Sire.
Lamia: Forgive me. I didn't mean to frighten you. I couldn't sleep.
Sir Elyan: Nor could I. But then again, it is my job to stay awake.
Lamia: Don't be afraid. I won't hurt you.
(She kisses him sick)
(Sir Leon and Sir Percival carry an unconscious Elyan)
Gwen: What happened to him?
Sir Leon: I don't know. We found him like this.
Gwen: Merlin! (Whispering) She did this. I know she did.
Merlin: We need to get him back to Camelot now.
Lamia: I know this area. There's a castle not far from here. We could take shelter there, you could tend to your friend.
Sir Gwaine: Then lead the way.
Merlin: We don't need shelter, thank you. We need Gaius.
Gwen: He's right.
Sir Leon: Silence! Both of you! You have no say in these matters! You come with us or you stay here! It's up to you! Let's go.
Gwen: We could try reasoning with them. Tell them Lamia is responsible for what's happening.
Merlin: They won't listen to reason. You've seen them, it's like they're under an enchantment.
Gwen: We have to do something.
Merlin: Arthur's our only hope now. We've been gone too long. He must know something's wrong.
Gwen: He'll never find us now. We're in the middle of nowhere.
Merlin: We need to give him some help.
Merlin: This is madness, Percival. Elyan needs help. You know nothing about this girl. You have no idea where she's taking you.
Sir Percival: You heard Sir Leon. We've no interest in your opinion. So keep your mouth shut, or I'll shut it for you.
Merlin: What is this place?
Sir Gwaine: Whatever it is, it isn't safe.
Sir Leon: We need to find Lamia. She could be in danger.
Merlin: We're the ones in danger, Leon. She's brought us here to... she's led us to a trap.
Sir Percival: That's a lie!
Merlin: She's poisoned your minds and you can't see it.
Sir Leon: Enough!
Merlin: It was Lamia that attacked Elyan!
Sir Leon: I said enough! (Pushes Merlin to the ground)
Gwen: Please! My brother's hurt! We need to find him somewhere warm!
Sir Gwaine: Over here. I'll make us a fire.
Sir Leon: Percival and I will search for Lamia (To Merlin) You will stay here, and you will do as Gwaine says. Do I make myself clear?
(Sir Gwaine steps on a wooden box, breaking it, stating his authority)
Arthur: It's impossible. They can't have just disappeared.
Agravaine: It could be that we're following the wrong tracks, my lord. Any number of people pass through these woods.
Arthur: It was them. I know it was.
Agravaine: Maybe we should go back to Longstead. Try again in the morning.
Arthur: By morning they could all be dead.
Agravaine: They're knights of Camelot, my lord. They are more than capable of looking after themselves.
Arthur: Maybe so. But you're forgetting one thing, uncle. Guinevere is with them.
Agravaine: I realise that, Sire.
Arthur: We keep going! All night if necessary.
Sir Gwaine: We need more wood.
Merlin: I'll go and get some.
Sir Gwaine: No. You stay where you are. I'll get it myself. You're not going anywhere.
Merlin: Gwaine, please, listen to me, it's not safe for you out there.
Sir Gwaine: Are you trying to tell me my business?
Merlin: No, I'm just saying...
Sir Gwaine: What?
Gwen: (About Elyan) If he doesn't get some help soon, he's not going to make it.
Gwen: I don't understand it. Why have only the knights been enchanted? Why not us as well?
Merlin: You're a woman.
Merlin: All her victims have been men.
Gwen: So why haven't you fallen under her spell?
Merlin: I've just been lucky, I suppose.
Gwen: There must be a reason.
Merlin: Maybe it's because I'm not a knight.
Gwen: The three villagers weren't knights either.
Merlin: Who knows?
Gwen: No, it's something about you, Merlin. It's the way she looks at you, as if you were the enemy.
Arthur: (Finding a strip of cloth she's left behind for him) It's Guinevere's.
Agravaine: How can you be certain?
Arthur: It's from her tunic. I'd know it anywhere. We must be close.
Sir Percival: Lamia! Are you all right? We've been looking everywhere for you.
Lamia: I thought you might never find me. Thank you, Percival. Thank you (She kisses him and makes him sick)
Sir Leon: (Arriving in time to witness it) No! (Tries to attack Lamia but she blasts him away)
Merlin: You won't find me such easy prey.
Lamia: Your magic holds no fear for me. I could have killed you any time I wished.
Merlin: Then what are you waiting for?
(Arthur kills the Lamia, saving Gwen and Merlin's life)
(She jumps into his arms. He laughs, happy)
Merlin: You carry on. Don't worry about me.
Arthur: Sorry! (Helps him off the ground. Laughs and pats his shoulder) (Teasingly) It's almost good to see you, Merlin.
Arthur: (About the knights) How are they doing?
Gaius: I have given them the same compound that cured the villager, Sire. They were fortunate that you got to them when you did.
Arthur: Thank you, Gaius.
Arthur: So, Merlin. Being saved by a woman. That really can't feel good.
Merlin: Feels a lot better than being dead.
Arthur: Does it? Being saved by a woman or dying? I'd have to think about that one.
Merlin: Well, don't think too hard. I wouldn't want you to hurt yourself.
Gwen: You wanted to see me?
Arthur: Just wanted to make sure you were all right. Been through a lot these past few days.
Gwen: I'm fine. Nothing a change of clothes couldn't cure.
Arthur: I thought I knew everything about you, Guinevere. Your loyalty, your wisdom. Since when did you become this fearless hero?
Gwen: Well, maybe you just didn't notice before.
Arthur: Maybe I didn't. Truly. You showed great courage back there.
Gwen: I did what anyone else would have done.
Arthur: You did a good deal more than that. You were equal to any knight of Camelot. I'm proud of you.
International Air Dates:
Australia: December 4th, 2011 on Ten.
Canada: February 26th, 2012 on Space.
France: March 30th, 2012 on Canal + Family.
Germany: February 22nd, 2012 on Super RTL.
Italy: September 19th, 2012 on Italia 1.
Sweden: October 27th, 2012 on SVT2.
Turkey: April 8, 2012 on CNBC-e.
USA: February 24th, 2012 on Syfy.
Despite featured in the opening credits, Katie McGrath does not appear in this episode.
It is the fifth time that Katie isn't featured in an episode after 2x09 The Lady Of The Lake, 2x13 The Last Dragonlord, 3x09 Love In The Time Of Dragons and 4x04 Aithusa.
The Great Dragon does not appear in this episode, but John Hurt is credited (for the voice-over at the beginning of the opening credits).
Château de Pierrefonds, Pierrefonds, Oise, France (Camelot).
Cardiff, Wales, UK (Studio sets).
Cosmeston Medieval Village, Wales, UK (Longstead).
Three Bears Caves, Forest Fawr (Heol-y-fforest), Tongwynlais, UK (Entrance to the castle).
Clearwell Caves, Lambsquay Road, near Coleford, Gloucestershire, England, UK (Tunnels in the castle).
Fforest Fawr, Cardiff, Wales, UK (Forest scenes).
Sat 19 Nov 2011 at 20:15-21:00pm on BBC One and BBC HD.
Fri 25 Nov 2011 at 19:45-20:30pm on BBC Three.