As they followed 7 through the desolate wasteland known as the Emptiness, Amy and Rory realized that there was something not quite right about their current height.

"Doctor?" Amy inquired, as she half-ran to keep up with him "Why is everything so…big, compared to us? Did the TARDIS make us smaller, so we could fit into the planet properly or something?"

"No," the Doctor replied, "The TARDIS can't do that sort of thing anymore."

"So the TARDIS could do that?" asked Rory, wide-eyed.

"No, not anymore. Weren't you listening? It's broken."

"Then why is everything so big?" Amy asked again. She pointed to a rusted vehicle nearby; "The cars look like they were made for giants!"

"There's a very simple explanation for that," said the Doctor, and he paused for effect before continuing, "They were."

"What?"

"Parallel dimensions. Have to have the same basic life forms but otherwise can be completely different. If they were all the same size the universe would collapse. That's why this planet is substantially larger than Earth, and why the humans here were…bigger."

"Oh…," said Amy, though she wasn't quite sure if she understood all of it, "Were?"

"This planet is, in a manner of speaking, dead. Post-apocalyptic. All former life forms have died out."

"But they're not dead," said Rory, gesturing to 2, 5, 7, and 9.

"No, they're not," said the Doctor, "But I have some theories about that…"

However, before he could continue he was interrupted by 7's voice calling up ahead.

"We're here."

They had reached the yard in front of a large, partly crumbled, grey building. It was bordered by a huge black fence and numerous large grey statues stood erect in front of it. Amy looked up at these and shivered involuntarily. Seeing this, Rory wrapped an arm around her comfortingly.

"They're just statues, they can't hurt us," he said to her quietly.

"I know," Amy whispered back, "But they look like…" She shivered again and didn't finish the sentence, forcing herself to look away from the statues and focus instead on Rory.

"Where is this?" asked 9, speaking for the first time since 7 confronted him.

"It's where we stayed before moving to the cathedral," 2 answered, "I imagine this is where 7 has been staying since she…left."

By now they had reached the entrance to the building, and they had to clamber over several books strewn across the concrete floor. It was darker here than it was outside, and 9 found that he had to turn on his lightstaff so that he could see properly. The light revealed the details of the painting he hadn't realized he was standing next to. Lifting his lightstaff up so he could see it completely, 9 looked at the painting thoughtfully. 5 stopped walking and stood beside him, also looking up at the painting. After awhile, 9 spoke.

"Is this…what it was like?" he asked. The painting depicted a beautiful scene, the likes of which 9 had never seen before, though somehow he knew what each thing was called. There was grass, trees, and even a stream lying beneath a bright blue sky. 9 understood, from somewhere deep within him, that this incredible world was what the Emptiness had been before the war. 5 didn't get a chance to answer 9's question, however, as 7 called out to them again.

"Keep up."

They kept walking, and eventually 7 led them to a large silver globe with a small hole serving as a makeshift entrance.

"This way," she said quietly, and they followed her inside.

The edges of the globe were covered in shelves, which were being used to store a huge variety of items, most of which seemed to have small tags attached to them. A large book, which looked almost like a scrapbook, stood in the very centre, filled with various pictures and newspaper clippings with little notes written beside them.

"A library!" the Doctor exclaimed, "Brilliant! I love a library."

7 glared at him and motioned for everyone to be quiet.

"3? 4?" she called, stepping forward, "You can come out, it's okay. The humans aren't dangerous. I…we need your help."

Slowly, two heads peered out from behind the book, and after awhile the figures stepped forward. They looked so similar that, had it not been for the numbers written neatly on their chests, it would have been nearly impossible to tell them apart. 5 gasped.

"3? 4?" he asked in disbelief, recognizing the two stitchpunks, "You're alive?"

2 laughed, "I always knew 1 was wrong about you two. I knew you would still be alive."

The two stitchpunks, 3 and 4, began to run towards 2 and 5 so they could welcome them, but when they saw the three humans staring at them they changed direction and hid behind 7 instead.

"Twins," 9 whispered in wonderment.

"Aww, they're adorable!" Amy exclaimed, "Can they talk?"

"Well, not exactly…" 2 started to explain, but before he could finish the twins had run over to 9 (evidently having decided that he wasn't a threat) and started to examine him, bright lights flashing blindingly from their optics as they did so.

"Whoa! What…!" 9 exclaimed, shielding his optics with his hands.

"Careful there," 2 cautioned, "Don't overwhelm the poor boy."

"They look like camera flashes…" Rory mused, "Are they taking photos?"

"In a way," 2 explained, "They're committing every detail to memory – it's called cataloguing."

Once the twins had finally finished cataloguing 9, 7 approached them.

"We need your help," she admitted, "Something…"

"Well this is impressive!"

The Doctor was standing in front of the large book in the middle of the room, looking over all the careful details involved.

"Do you mind?" 7 asked, her voice filled with irritation.

"What? Oh no, go ahead," the Doctor replied absentmindedly.

7 seethed quietly for a moment, glaring at him icily before turning back to the twins; "We were at the factory. And a machine was…," she glanced over at 9, "…awoken."

"But it's different to the Beast," 5 explained, "It only has one eye, and it's got a multitude of arms."

"And it's big," 2 finished gravely, "Not as big as the walkers, but certainly more powerful."

The twins' eyes widened in worry, and they turned to each other for a moment, flickering, before running to the book. The Doctor stepped back as they approached.

Working together, 3 and 4 carefully turned over a few pages, stopping when 9 cried out; "That's it!"

There, spread out across the pages, was the machine; looking just as powerful as it had at the factory. The caption above the picture read; 'THE MACHINE'. Evidently the twins had gathered this piece of information from a newspaper, though the rest of the article wasn't there.

The Doctor brought out his silver-coloured device and pointed it at the picture.

"What is that?" asked 2 in curiosity.

"This is my sonic," the Doctor replied as he began to scan the image of the machine, "And it does all sorts of cool sonicy-wonicy stuff." Amy turned to look at him.

"Sonicy-wonicy?"

"What's wrong with sonicy-wonicy?" asked the Doctor, incredulous, "Spacey-wacey, timey-wimey…I had to do something with the Ws," pocketing his sonic screwdriver, he turned to Amy and Rory, "I'm going to see if I can find the rest of this article," he explained, "You can come if you want but it might be better for you both to stay here."

Without waiting for a reply from either of his companions the Doctor turned and ran out of the globe, into the vast expanse of the library to search for the article.

"Well, I guess we're staying here then?" Rory's statement became a question as he looked to Amy for affirmation. She was the one who usually made the decisions when the Doctor suddenly ran off like this.

"Yep," Amy replied, sounding annoyed as she continued to stare at the exit that the Doctor had just run through, "I guess we are."