The Doctor always knew his TARDIS had a mind of its own, even more so after it temporarily ended up in the body of a woman. Right now, it was taking the Doctor somewhere, and Amy and Rory were forced to tag along. Christmas with them had been fun, but they all knew that things were about to get a lot more interesting.

The TARDIS finally touched down...somewhere. On the monitor, it looked like London, albeit a badly destroyed London. 'What happened here?' mumbled the Doctor to himself. 'Who destroyed you?'

The TARDIS doors opened, and out stepped Amy Pond. Her brightly coloured hair and clothing offered a shocking contrast to the bleak city that surrounded her. In the distance she could see 20 St Mary Axe with its top half missing, so they must have been somewhere in the city.

The Doctor quickly followed her out, sonic screwdriver in hand. He started darting about the street, scanning random objects. He managed to bring a broken down taxi to life, but only temporarily, for it suddenly backfired and burst into flames. 'Is it supposed to do that?' the Doctor asked, while in reality he knew perfectly well that it was not supposed to explode.

Rory was still in the TARDIS, trying to find a jacket.

'Come on, Rory.' called Amy. 'While we're young.'

'I'm coming.' he replied.

As he walked toward the doors, they suddenly slammed shut in his face. Amy panicked and started banging on the TARDIS, shouting Rory's name, while the Doctor tried and failed to open the box up. But it wouldn't budge; it was being stubborn.

'Doctor' said Amy, a fearful tone in her voice.

'Yes, Amy, I'm trying to get him out.'

'That's not what I meant. We've got company.'

The Doctor stopped what he was doing and slowly turned around. He knew why Amy was scared now; staring back at them were three figures with unmistakable faces, mouth-less faces that belonged only to one thing: Silence.

Amy grabbed the Doctor's arm. 'Doctor, what do we do?'

'Run!"

The two took off in the opposite direction, sprinting as fast as they could toward a tube station.

'What about Rory?'

'He'll be safe in the TARDIS, it's impenetrable!' The two of them bolted down the stairs, slipping on some water at the bottom and coming to a stop right against the ticket gates.

'I hope you have enough credit on your Oyster card.' the Doctor said to Amy as they both launched themselves over the gates; there was no time to use his screwdriver.

The Doctor had said that his TARDIS was impenetrable. How wrong he had been. He did not know enough about the Silence to know all of their abilities. They were in effect time travellers like him; that's how they were able to manipulate humanity. They also knew a thing or two about the Doctor; they knew how to get into the TARDIS.

A bit of zed-neutrino energy and they were in. Rory was concerned.

'You will come with us, young Rory Williams.' one of the Silent said, his voice sent chills down Rory's spine.

'I won't go with you' was all Rory could manage, an audible tremor in this voice.

'I'm afraid you have no choice, Rory. If you do not come with us, we will kill your daughter'.

River; they had River.

'I don't believe you.'

One of them produced a small book; it was River's diary, and it's cover was smeared in what looked like blood. Two more Silence entered and grabbed Rory by the arms. 'I promise you that we have no intention of harming you.' said the Silent who was obviously in charge. 'We will improve you.'

As the Silence took Roy away, Amy and the Doctor were running through Oxford Circus tube station, running from more Silence that had apparently come from nowhere. But then Amy saw their saviour: a tube train, still powered, with its doors open as though it were waiting for them.

'Doctor, this way.' she shouted.

The two of them ran onto the train, the Doctor locking the doors behind him. Silence started banging on the doors and windows, as the two time travellers both came to the same realisation: they were trapped.