The freezing cold of the planet's winter even affected Jack, who shivered a little every time the icy wind brushed his face. To his surprise, it might as well have been a spring day for Chloe. She was wearing clothes fit for a nice spring day, yet the chilly temperatures didn't seem to be slowing her down at all. Suddenly, she stopped and looked around. "Something wrong?" Jack asked.
"I think, can't be certain, but I think someone's following us," Chloe replied.
"How do you know?"
"I don't know, I just feel like someone's watching or something."
"It's probably nothing. We better get going. Time's a-ticking and we're no closer to knowing where the Doctor is."
"Right, OK."

They set off again, over a few hills but mostly walking on flat land that was covered with snow, sometimes stopping to scan. Teleports left some sort of reading and they should be able to trace it, if they got close enough. They suddenly heard a snarling behind them. It was almost metallic, which made it sound all the more menacing. They turned around, and saw the almost fluorescent purple creature. Its eyes were green flames, and its claws were enormous. It looked like a giant panther who had been involved in an accident involving chemicals.

"I think we need to run. Fast," Chloe said. Jack agreed and they turned around before running for their lives. The creature growled and leapt towards them. It got so close to them that one of its claws scratched Chloe's arm, but both of them were too focused on getting away to notice, or at last stop to do something about it. Jack got out his gun and tried to shoot it, but it only affected the creature a little. "Come on!" He shouted, directing Chloe to the snow covered forest that was imprinted in his mind for all the right reasons. They entered the white forest and hid behind one of the trees.
"It'll find us," Chloe said quietly, a catch in her voice, "It always does."
"What do you mean?" Jack asked concernedly, at the same volume.
"That creature is a patnon," she explain, "And that's the race which tried to invade and one of them killed my parents."
"Is there any way of stopping them?"
"Yeah. A certain weapon. I've always kept it by me but today had to be the day where I left it in my bag, didn't it?"
"That's not good."
"Definitely."
"Is it possible it came from your parallel universe?"
"How would I know that?!"
"I don't know, just a thought
"So, any ideas of what to do?"
"We can't run much further. We can hope it'll just get bored of chasing us."
"That sounds good. I'm taking advice from a teenager..."
Chloe chuckled a little, "If you don't like it, then think of your own ideas."
Jack put his index finger on his lips, and they could hear the crunching of snow and then a loud roar. They were as still as statues, in anticipation and fear. The patnon seemed to be circling the trees around them, and Jack smiled to himself as he was reminded that they were in a rather dense forest. It would need immense strength to make its giant body get to them, as the trees were strong and their roots stronger than the trunks themselves. Jack had learned that the hard way. All of a sudden, the creature let out a roar so loud, they wouldn't doubt it could be heard miles away. Thinking it was going to attack, both pressed their eyes shut, but to their surprise, nothing happened. After they cautiously opened their eyes, Jack spotted the patnon lying on the ground outside of the forest, lifeless. Jack signalled Chloe to follow him, and they swerved past the trees before coming before the now dead creature. Chloe looked up, and saw a woman a few feet away. She had dark blonde frizzy hair, wore a white outfit that was fit for winter, and a gun was held in her hand. Chloe tapped Jack's shoulder and nodded in the direction of the woman. "Who are you?" Chloe asked out of curiosity.

"I'm River Song," the woman replied, "And where is my husband?"