Gaius: Merlin, the only person who ever doubts your powers is you.
Gaius: Are you all right?
Merlin: [struggling to tote the queen in a wheelbarrow] She's a lot heavier than she looks.
Gaius: That might very well be grounds for treason.
[Arthur sees Gwen conspiring with Morgana and draws his sword]
Merlin: [whispering] No, My Lord. Morgana's too powerful. Now's not the time.
Arthur: How could she do this?
Merlin: She's not the Gwen you love. She has fallen prey to a dark and powerful magic.
Arthur: If I lose her, I lose everything.
Merlin: We'll fine a way to bring her back, Arthur. I promise.
Gaius: When I was young I heard talk of an ancient ritual of the old religion called The Tiana Diaga.
Merlin: Tiana Diaga?
Gaius: The Sacred Fire. The ritual used the mandrake root to bring unimaginable terror to the victim. Their screams could be heard twenty leagues away. When it was finally over, their will was no longer their own. They were slaves of the high priestesses for eternity.
Merlin: You know how exhausting the aging spell is, Giaus. I don't have the strength to do that and perform the ceremony.
Gaius: Then you must find the strength.
Arthur: This tincture of belladonna, what are its effects?
Gaius: Patient is rendered into a deep sleep...
Gaius: It is generally used for the badly wounded.
Arthur: How long does it last?
Gaius: A few hours. It has to be administered several times a day to provide a continuous sleep.
Merlin: But for no more than three days.
Gaius: It is true, sire. The tincture should not be taken for an extended period.
Merlin: The body will not tolerate it.
Arthur: Thank you, Merlin.
Gaius: It is the only way, sire. Sorcery has to be fought with sorcery.
Arthur: Gaius, you're sure this is gonna work?
Gaius: You' be amazed how much license old age lends you, sire. Merlin, come. We meet at the darkling wood.
Arthur: Merlin, if you drop her...
Merlin: I know. I lose my head.
Arthur: Just so we're clear.
Arthur: [waiting for Gaius and Merlin and the unconscious Gwen] What kept you?
Merlin: [burdened by the queen's weight] You have any idea how... steep these slopes are?
[as Arthur carries Gwen and Merlin carries their supplies, Merlin feels they're being watched]
Arthur: These funny feelings of yours...
Merlin: They're not funny.
Arthur: Stupid, then. Where do they come from, you think? You still there, Merlin? Don't tell me you've gone into a sulk.
Merlin: I'm not sulking. I'm... carrying a load even a horse would struggle under.
Arthur: You do good.
Merlin: How come it wouldn't do you good?
Arthur: I'm already good.
Mordred: Why don't you kill me?
Morgana: My argument's not with you, Mordred. How could it be? We're of a kind.
Morgana: You wear the uniform well, but we both know what lies beneath. Do you think Arthur would tolerate you for one minute if he knew the truth - one of his knights a sorcerer?
Mordred: One day he will know. One day we will be accepted.
Morgana: Your naivety would be charming if it wasn't so dangerous. Where's Emrys?
Morgana: You pretend you do not know of whom I speak?
Mordred: It is a name I've only heard of.
Morgana: He's not here, with you?
Mordred: If he was, would we both not feel the presence of such a great sorcerer?
Morgana: [confused by this news] Then I have no further use for you.
Mordred: [as she's about to blast him] You would strike one of your own? I am not strong enough to defeat you, Morgana, but know this: Such hatred as yours can never triumph. I hope one day you will find the love and compassion which used to fill your heart.
Merlin: [having dropped his dress in front of Arthur] The sorceress. She likes to be paid in clothes. She can't get to a tailor.
Arthur: Why would a recluse be interested in clothes?
Merlin: [a little exasperated] I don't know, Arthur. She's a sorceress. She's not gonna be normal, is she?
Mordred: Arthur's a lucky man.
Mordred: Not just to have Gwen, but to have you.
Merlin: He'll find someone else to do his chores soon enough.
Mordred: It was hardly a chore. That was your magic back there, wasn't it? Have no fear. I will not divulge your secret. I admire you. It can't be easy to do so much for so little reward.
Merlin: I do not seek reward.
Mordred: Recognition, then.
Merlin: My friends are safe and well, that's all I require.
Mordred: You see, Merlin, we do have something in common after all - the future of Camelot.