"Can we go to your planet?" Ronnie leaned on the TARDIS console, taking in the technology. It was very steampunk, a mixture of a hundred different things.
"How about I show you deep space? Everyone loves deep space." The Doctor replied hastily, and pushed up another lever. He ran down the stairs and threw open the doors, as Ronnie gazed into the stars. She saw the galaxies, their gas clouds, stars and nearby planets, sprinkled on top of a black backdrop, that stretched far beyond the cosmos.
"It's beautiful." She reached her hand out, wanting to touch it. She pulled her arm back hesitantly, fearing she would fall out. The air inside the TARDIS was warm, but outside, it was freezing. Ice had formed on her fingertips from just two seconds of exposure. "Uh, Doctor, when you said 'everyone loves deep space,' who's 'everyone?'"
"Just some friends I traveled with. They're all gone now, off having their own adventures." He answered truthfully. But in his truth, Ronnie saw sadness. Has he lost anyone to Death before?
"How could they leave this?"
"You'd be surprised, actually. They all have to leave in the end."
"Did any of them…die?"
The Doctor looked at her, surprised by her question. "A great friend once told me, 'Everything has it's time. Everything ends.' I hold her words to heart. Death is never expected, not in the least. Life is an illusion, a word we use to describe the time of a person, and death is a word to describe the end of their time. What happens before life and after death are never truly known, but we all know what happens during life and before death. Because we can measure those things, but with death, we cannot fathom the word itself."
Ronnie stayed silent after the Doctor's words. They touched her, as they watched the passage of the Universe before them, the warmth of the TARDIS sweeping over her shoulders, extending into the cold vacuum of the cosmos.
A/N:
Yes I know this was short, but it's a perspective of how dark this story is going to be. Also, I'll be throwing random philosophies in here and there, because thats who I am.