Rose missed the adventure and the exitement that she experienced while travelling with the Doctor. So she could continue feeling the adrenaline of those times, she decided to take up some dangerous sports.
After some research that she asked Pete to get for her, she discovered that in this Universe the highest mountian in this world was in fact Scafell Pike, since an invasion force of Mechonoids thought that the mountains were the dominant species, so took them away and sold them into slavery.
As the mountain is in the Lake District, Rose could find the way easy enough, she did have a handy Pete after all.
The Doctor had accidentally fallen through yet another crack in time, but this time miraculously retained power in his TARDIS. He landed somewhere in Hampshire, but took advantage of his gift by going to visit Rose. Emphasis on visit.
When he arrived, he discovered no-one there, except Jackie watering the plants in the garden.
"Err Jackie, where's Rose?"
"Hey it's you! What do you want?" she 'replied'.
"I would like-"
"You want some tea again?"
"No, I want-"
"We're not being invaded by those cyberthings are we?"
"No, all I want is-"
"Not Daleks is it?"
"NO! I JUST WANT YOU-"
"Do you want to see Rose?"
"Yes!"
"Oh. Well she's gone to climb some scaffolding.
"Scaffolding?! What on Earth are you talking about?!"
"She said she was going to climb scaffolding in Pike."
"Where's Pike?"
"In the Lake District of course!" The Doctor mulled this over, then came to a conclusion.
"I think you mean Scafell Pike." With that, he ran back to his TARDIS, already mentally scarred by this meeting.
A few days later, Rose and her brain (aka Pete) were in Cumbria, preparing for her accent. All was in place, Rose was ready, so up she went!
Rose was nearing the top, but little did she know that someone was allready up there. Yes, the Doctor had cheated and gone by TARDIS.
He sat back in a deckchair glugging down the tea and admiring the scenery, waiting for her head to break the summit.
Rose was exhausted, and decided when she breached the summit she would take a rest and eat lunch. She pulled herself over the top, and sat with her legs dangling off the edge, looking out over the lakes of the district. She was too tired to hear the Doctor creeping up behind her. He leaned in and shouted in her ear.
"BOO!" Rose jumped up, saw the Doctor, yelled his name, before toppling off the mountain with a dispairing scream.
"It's been a while since anyone was THAT frightened of me!" the Doctor exlaimed, before climbing into the TARDIS, which also toppled off the edge, and landed on Rose's corpse, before dematerialising.
I personally think this one was very evil indeed, and that's the way it should be.