Elena, Damon and Stefan sit in the room waiting for Katherine to come to the Lake House.

''Do you think she'll show?'' Elena asks impatiently.

''She should'' Damon says.

Stefan sits in silent staring down at the floor thinking about Amelia. He missed her so much. They would chat most of the day, she would tell him everything and he would do the same. He keeps blaming himself for letting her go out in the woods that night.

''Stefan'' Damon snaps and he looks at him.

''I'm sorry what?'' He asks.

''I said, are you alright?'' Damon asks.

''Oh, yeah i'm fine. You?'' Stefan says. Damon nods. Then the bell rings.

''She's here'' Elena says. She gets up and opens the door.

''Are you ok? What wrong?'' Katherine asks walking inside.

''Amelia's gone'' Damon says getting up.

''What? How? Where is she?'' Katherine asks acting surprised. Elena shuts the door.

''Klaus has her'' Elena says folding her arms.

''How?!'' Katherine snaps.

''I think you know already'' Damon says.

''What is that supposed to mean?'' Katherine asks.

''Oh come on Katherine. You're not fooling any one any more. Where is Klaus and Amelia?'' Stefan gets up. Katherine looks at them all, then she runs to the door. When she opens it she finds Rebekah stood in front of her.

''Hello, Katherine'' Rebekah says pushing her back inside. When Katherine turns around Elijah is stood in front of her now.

''Where is Nikaus staying?'' Elijah asks.

''Why would i tell you!'' She snaps.

''Because you either tell us or you die'' Damon says walking up to her. ''Your choice'' He smiles.

Klaus stands by the glass door and stares down at Amelia who has fallen asleep in the chair. He and Amelia for saying they are enemies have gotten on a lot today which was strange. Klaus' face breaks into a grin when he thinks about her.

''Niklaus'' Natalie says making him jump. His smile drops and he walks out the room to her. ''They have Katherine'' Klaus sighs.

''Too bad'' Klaus says walking into the kitchen.

''Too bad?!'' Natalie snaps. ''She's helping us, shes part of the team''

''I know, but they have her. I will not risk my life just to save her'' Klaus say pouring himself a drink. Natalie scoffs.

''What if it was me? Would you just leave me?'' She asks.

''Well, no. Because i like you. You're a friend Natalie'' Natalie smiles. ''You see. Katherine is just someone to go undercover. You know, like a spy'' Klaus says.

''A spy?'' She asks and he nods. She laughs. He passes her a glass and they drink the alcohol. ''Oh and I saw you looking at her Niklaus'' Natalie says putting her glass back on the table.

''Who?'' Klaus asks.

''The girl'' Natalie says. ''I know you like her''

''What?'' Klaus asks. ''You think i like Amelia?'' He laughs.

''Klaus i know you like her. Its obvious. The way you look at her. And how you treated her was different from 5 days ago, when you were pushing her about. She was scared. Have you noticed she's not terrified of you anymore? You and her have got on quite well, Niklaus'' She pauses. He glares at her. '' The Sacrifice is in 2 weeks; you're going to be killing her. Don't get distracted. You have waited over 500 years.. You finally have the human doppelganger, Klaus'' She says.

''I do not have feelings for the doppelganger Natalie. I don't care or feel about anything. You know that'' Klaus snaps and then walks out the back door. Natalie shakes her head and walks down the hall. She glances at Amelia who is sleeping. Then she carries on walking down the hall to the front door. She opens it and walks out, on her way to meet an old friend.

Katherine is tied to a chair by her ankles and arms.

''You know'' Katherine says. ''I won't tell you. You're going to be here for a while''

''I don't care how long it takes to get it out of you, Katherine'' Elena says pulling a chair in front of her.

''Oh yeah? How about 2 weeks?'' She asks. ''I know Klaus is giving you a chance. To be honest i don't know why.. You won't be able to find him'' She laughs.

''Really'' Elena asks and looks to Stefan who is stood by the window. She nods and he walks over holding vervain in a plastic bag. Elena takes it out of her hand and puts it against Katherine's skin.

''I WON'T TELL YOU'' Katherine shouts. Stefan shuts the curtains.

''Why? What have you got to lose? Whatever Klaus promised you, he won't keep it'' Stefan says.

''He will'' Katherine says.

''How do you know? And what did he promise you?'' Elena says.

''He said he'd let me go if i help him. He wouldn't hunt me down. Harm me. Just let me go and live my life..'' She says.

''She is right'' Elijah says taking a step forward. ''He will let her go. If he has Amelia he doesn't care about Katherine''

''But once we get Amelia back he will keep hunting Katherine?'' Elena asks.

''I'm not sure.. Maybe. I don't know for sure'' Elijah says. Just as Elena's about to reply.. The door bursts open and a tall red-haired woman walks in with Natalie. Everyone stares at the two women.

''Natalie'' Elijah says.

''Hello Elijah.. Rebekah'' Natalie says. ''And Katherine'' Katherine smiles at her. Elijah stare sat the red-haired woman. He recognises her from somewhere but he's not sure where.

''Why are you here?'' Rebekah asks.

''I'm here to get Katherine back'' Natalie says and Damon laughs.

''Try it'' He snaps.

''Oh i will Mr Salvatore'' Natalie looks to the red-haired woman and nods. Then the woman stares at them all. Then They all start screaming and they drop to their knees. Natalie runs over to Katherine and unties her. Once she's untied, her and Katherine run out the house. The red-haired woman smiles before leaving all the other vampires on their knees holding their heads.

Natalie, Katherine and the woman with the red hair return back to Klaus, who is stood in the kitchen pouring himself another glass of alcohol. They walk into the kitchen and his eyes widen.

''Sarah?'' He says.

''Hello, Klaus. Do you remember me?'' The red-haired woman, Sarah says. He smiles.

''How could i forget you'' He says and she hugs him.

''I heard you needed a witch. Well here i am'' Sarah says pulling back. He looks to Natalie.

''I thought we'd get ready'' Natalie says. ''You know, for The Sacrifice''

''Thats if they don't find me first'' Klaus says trying to hide his disappointment.

''They won't. I didn't tell them anything'' Katherine says.

''Good'' Klaus sighs.

''Where is the doppelganger?'' Sarah asks.

''Sleeping'' Natalie says. Sarah smiles and Katherine shows her where Amelia is.

Klaus drinks the alcohol and puts it back down on the table.

''You didn't tell me you were going to get Katherine'' Klaus says annoyed.

''You didn't ask'' Natalie smiles.

''And you didn't tell me you were going to get Sarah too'' He says quietly.

''I want to get everything ready.. 2 weeks remember'' Natalie says and they join them again.

''She looks peaceful, Niklaus'' Sarah says.

''She's sleeping'' Klaus says.

''Exactly. She wouldn't be if she was scared'' Sarah pauses. ''She'd be up, watching our every move''

''What are you trying to say, Sarah'' Klaus snaps. Sarah tilts her head to the side.

''Nothing'' She says confused by his reaction. Klaus stares at her. ''Anyway, I'm going. Its getting late. I'll be back tomorrow morning'' Sarah says. ''It was nice meeting you'' She say to Katherine who smiles. Then she nods at Klaus and walks out the house.

''What was that about?'' Natalie snaps when she's gone. Klaus looks at her strangely.

''What?'' Klaus asks.

''You know what'' Natalie snaps and walks out the room with Katherine. Klaus stares down at the floor. Then he grabs the glass and throws it against the wall.

''Who was that?'' Elena asks getting up off the floor.

''A witch obviously'' Damon says.

''I know her'' Elijah says.

''How?'' Elena asks.

''She was a friend of our mothers'' Elijah says looking at Rebekah who nods.

''Why didn't it affect Katherine?'' Stefan asks.

''I remember her too.. She's very powerful'' Rebekah joins in on the conversation. ''She is one of the most powerful witches. Her name is Sarah Cunningham''

''Well we have lost the one chance of finding Amelia'' Elena sits down.

''No, we haven't. Katherine wasn't going to tell us. Lets just face it she was just going to sit there'' Elijah says. ''We have 16 days left. I'm sure we can do it''

''Hopefully'' Elena sighs.