Clara opened her eyes blearily, a feeling of déjà vu sweeping over her.

"Doctor?" she called. She looked around her. She was in what looked like some sort of futuristic ship, all lights and buttons. And she wasn't alone.

The Doctor made a shushing sound as he stepped out of the shadows.
"We need to stay very quiet, Clara, I'm not particularly sure where we are. The TARDIS dropped me off here and then de-materialised," he whispered, helping her to her feet. He had a bad feeling about this place.

Clara looked around.
"I bet it's that bloody ship trying to get rid of me. It's never liked me." She peered around the room again, trying to work out what it was. The Doctor scowled at her.
"Doctor? Is it just me or does the design of this ship look familiar?" she asked warily.

The Doctor was still scowling at Clara for her comment, but at her words he began glancing around the room, finally taking in its appearance.
"Yes," he gulped. "We need to get out of here."

"Well, how do we get the TARDIS back then?" she hissed. She doubted that lowering her voice would stop them from knowing they were there, but she wasn't taking any chances. As far as they were concerned, the further away you were, the better.

The Doctor was about to retaliate, when he heard something coming. He grabbed Clara's wrist as pulled her down a corridor with him.
"Maybe not back to the TARDIS yet but let's at least hide somewhere and reduce our chances of death," he hissed, when they were finally a safe distance from the other being.

They hurried along another corridor, until they came across what looked like the door to a cupboard. Clara stopped and opened the door. She only realised her mistake when she realised that it was not a cupboard. It was a storage unit. For thousands of them.

The Doctor grabbed Clara's shoulders and pulled her backwards.
"Not good," he mumbled. "Run!"
He began running but realised she wasn't following. What was up with her? He dashed back to her side and poked her arm.
"Come on," he hissed, but she remained rooted to the spot, staring at the (for now) deactivated Cybermen.
"I know, I know, Cybermen. P.E. But we need to go before they activate," he pleaded.

She stared at the room of Cybermen, mesmerised.
"Danny. Danny!" She whipped around to face the Doctor. "Think about it. You said those particle things are like a magnet, drawing me to one thing. And who would want to draw me to them? Danny would! And before you give me those big old eyes and tell me I'm wrong, that Danny is dead, I know, I know, but I can just tell. It's him, Doctor. It's him." Her eyes shone as she looked at him.

The Doctor bit his lip and frowned at her.
"But, Clara, it can't be him, and you know it. I don't know what's going on but this isn't some fairytale where he comes gallivanting back to you like a knight in... well, in shining armour," he said quietly. "We need to get away from here. Now."
He turned around and began walking away, waiting for her to follow. He wouldn't admit it aloud, for fear of hurting Clara, but he preferred the boy to be dead.

Clara watched him walk off, her eyes sparkling with tears. She knew that Danny was dead: but with just as much certainty, she knew that he was connected to this somehow. She turned to close the door to the Cyberman storage unit and almost screamed.
"Doctor! Doctor, they're moving!" She slammed the doors shut and ran to catch up with him.

The Doctor had stopped round the corner, waiting for her, but at her shout he sprinted back, almost running into her. She grabbed his hand and they ran, not really sure where they were headed, but just as far from that storage unit as possible. She followed him down the corridor, panting, her eyes still slightly damp.
"Doctor, I'm sorry, I-" she cut her sentence short as they rounded a corner and came face to face with one of their foes.

The Doctor stared at the Cyberman, his hand giving Clara's a firm squeeze.
"Do you think it's seen us?" He whispered, but quickly got his answer.

"UNAUTHORISED ACCESS," the tin voice rang as it's hollow eyes 'stared' at them.

Clara slipped her hand into the pocket of the Doctor's coat and pulled out the psychic paper, her mind working furiously. She held up the paper in front of the Cyberman, giving it time to scan it.
"We are authorised," she said, as confidently as she could. "We have unrestricted access to this area." She wanted to glance at the Doctor to see if he was going along with it, but she didn't dare take her eyes off the Cyberman. The Doctor nodded along with her statement.
"Yes, I'm rather surprised you were not aware of this," he said sternly to the Cyberman, holding back a smile at Clara's quick thinking.
The Cyberman seemed conflicted (if an expressionless robot alien can have emotions), but appeared to believe them.
"YOUR AUTHORISATION IS ACCEPTED," its voice rang.
The Doctor let out a sigh of relief as it marched past them without any question.
"Okay, that worked this time, but I doubt it will again," he whispered to Clara as they quickly walked away, plucking his psychic paper from Clara's hand. Clara raised her eyebrows.
"How about an "oh thank you Clara, you saved our lives"?" They started back down the corridor. "Without me, mister, you would've been toast."

The Doctor glanced down at her. Her arms were crossed and there was an unimpressed look on her face.
"Thank you," he mumbled.
They walked aimlessly for a few more minutes before the Doctor stopped them, scanning the air with his screwdriver.
"No lifeforms within close proxim- oh there she is!" He exclaimed as the sonic buzzed, indicating his TARDIS was nearby.

"Great!" said Clara. "Let's be off, shall we?" She knew as soon as she said it that it wouldn't be that simple. The Doctor had that look in his eye: that "there's something going on here and I want to find out what" look.

The Doctor shook his head.
"No, Clara. There's a reason you've been brought here remember, and I think we should find out what that is," he said gruffly.
Clara nodded, resigned. She knew that travelling with the Doctor was never going to be easy. Besides, she wanted to find out what was happening with these particle things.
"We should still get to the TARDIS though, right? Just so we're a bit safer," she said.

The Doctor gave a brief nod.
"Probably best. I can give you a thorough scan in there after all." He held his screwdriver to his ear and listened to the buzzing as he began walking.

Clara walked along with him.

"You've already scanned me, Doctor. You said it was those- huey particles or whatever. Why should there be anything different now?"

The Doctor spun around and looked her up and down.
"Because we're on the ship now. They're active. They can hopefully lead us directly to the source, and where there's a source, there are answers," he said swiftly. "Now come on."

She followed him, rolling her eyes. She knew he was probably right (he usually was) but it sometimes got on her nerves how he just assumed he was.

They walked a little further until the Doctor halted by a right turn, stalking down it. It opened up into a larger room, the TARDIS standing in the middle of it.
"Hello, old girl," he said softly, stroking the door before pushing it open and beckoning Clara to follow.

She followed him into the TARDIS, relieved to be in a familiar (and hopefully safe) place.

"Right," she said, "Where do we start?"