Sarah moved her way through the crowd. The Dyad Institute was bigger than she thought, and she had no idea how many of these lab coats knew Cosima personally. Looking passed her sister's glasses, Sarah wished she'd thought more about this plan. Get to Rachel. Save Kira. Now she was here, she had no idea what to do. Where would Rachel be? How would she get there?

Just as she was thinking she made a massive mistake coming here, Sarah felt someone grab her arm. Panic fired through her. She span around to make a break for it, when the woman in front of her smiled so genuinely it made her stop.

'Cosima!' Her grin spreading, 'You came!'

A French accent, this must be Delphine. Smiling back, Sarah let out a breath she didn't know she was holding. 'Hey' Sarah had to think. Quick. What does Cosima do? She was about to make some weird hand gesture, Sarah felt a pair of cold glossy lips on hers.

'You won't regret this' Delphine whispered. I think I do already. Oh god Cosima don't hate me. Moving as far away from Delphine's embarce as she could, the only noise she could muster was a grunt. The smile she pulled was so fake that even an outsider would have questioned it. Luckily Delphine wasn't looking.

'Aldous, look who it is' Delphine waved her hand into the air.

'Oh no, no, no,' Sarah realised her British accent was slipping back. She tried to laugh and become bubbly like her sister, but panic was creeping back to her. Sarah knew she couldn't keep this up for long. Keep cool. Leekie might know something. He might know where Rachel is. Think of Kira.

As Dr Leekie made his way over, Sarah did her best to make herself the nonchalant, confident, troublemaker she knew her sister to be.

'Why hello, I wasn't as sure as Delphine that you were going to turn up' His smile gave her goose bumps. Don't trust this man. Sarah looked up at Delphine for reassurance. The proud smile she gave back made Sarah feel sick. I'm not the one you love. Stop looking at me like that.

'Yeah, well here I am' Sarah wiggled her fingers for good measure 'Doesn't mean I'm gunna sign your contract though'. She was determined that if she was going to trample through Cosima's life like this, that at least she wouldn't make too much damage.

'This is really a starting point. Uncharted waters. Really it's all up to you' His smile was friendly but there was something there that Sarah didn't like. Didn't trust. Knowing Cosima, she was probably too understanding to the old manipulator, Sarah wanted to rustle Leekie's feathers for good measure. No one should mess with the clone sisters!

'Ok,' Sarah said, looking directly into the enemies eyes. 'But I want my own lab' She shrugged her shoulders and held her stare. A surprised huff escaped Leekie as he took a step back. Sarah's smugness radiated from her. Hey I could do this. I could be a negotiator. I could demand a whole building, it's us that they want after all. Out of the corner of her eye, Sarah saw Delphine cross her arms. Maybe I went too far? Sarah was starting to lose her confidence. She tried to give Delphine her Lab-winning stare but the glasses made it less threatening. God damn Cosima is blind.

'Cosima, you have a bright future,' He look hold of her hand and gave it a gentle squeeze 'This is the best place for you to be right now' Sarah knew that she'd pushed him too far, he was about to leave, this was her last chance.

'Thank you Dr Leekie.' She said with her best appreciative smile. She pulled him into an awkward hug. Effortlessly, Sarah slid her hand into his pocket and fingered her way towards some sort of badge. Gotcha, she thought, hopefully that was all worth it.

Leekie smiled and walked away. Sarah was just about to relax when she realised that Delphine was still here.

'You're Sarah' It was a statement, not a question. Her face was blank and her eyes cold. Well the cats out of the bag now.

'Yeah.' She replied, giving up the Cosima-disguise. 'Nice to meet you too.' Sarah told herself to keep her defences up. This was the girl who hurt Cosima. She's a monitor. She can't be trusted.

Delphine's face softened with a look of sympathy. 'Does Cosima know you're doing this?' Sarah could see how her sister could fall for this woman. She looked like she really cared, and wanted to help. Her eyes were wide and full of emotion. Her hand took refuge on Sarah's arm, and it made her feel almost safe. Almost.

'Depends if I get caught' Sarah kept her voice hard and unattached. She didn't have time to figure out who she can trust, but she trusted Cosima, and Cosima trusted Delphine. She would have to do. Grabbing her by the waist, Sarah brought Delphine closer so no one else could hear them talk. You could see it on her face that Delphine was uncomfortable, but Sarah appreciated the fact that she didn't try to pull away. Maybe she did want to help.

'Where are Kira and Siobhan?'

A blank look crossed Delphine's face. 'What?'

'Don't play stupid, Rachel kidnapped my family! Where are they?!' Sarah demanded.

Panic played on her face 'H-how would I know?' I've never even seen her' Sarah could see the desperation in Delphine's eyes, she was telling the truth. The fact that she was so desperate for Sarah to believe her took her by surprise.

'Well, I've seen her, and if you want to keep Cosima out the loop, then you'll tell me where she is' Anger was fuelling Sarah now, the fact that she knew Delphine would help without the threat of Cosima meant little to her. She wanted Rachel! And she was so close! All she could think about was the smug little smile on the bitch's face. Delphine will tell me what she knows!

'Ok' she gulped 'There is serious business going on right now.' Someone walked by and Delphine gave them a quick smile, her voice grew quieter. 'My guess is that she is using Dr Leekie's office'

'Where's that?' Sarah asked,

'Down there,' Delphine nodded down toward to stairs on the far end of the hall. Sarah moved the glasses to see where Delphine was looking. Four guards. Easy. 'It's near to impossible to get down there, you'll need a swipe key to get down to the 10th floor'

'Like this?' Sarah, showed her the card she took from Leekie. Her confidence growing. It's all coming together. We can do this. I'm coming to get you Kira. Her face turned hard. I'm coming to get you Rachel.

So drunk on the feeling of triumph, Sarah didn't hear Delphine whisper 'You're going to get yourself killed.'