Okay, so I’ve been thinking about a Doctor Who/Stranger Things crossover for, like, months now (I mean. Eleven. And Eleven. My two favorite characters in existence. How could I NOT?). Just imagine it!
Elle is trapped in the upside down after what she did to the Demigorgon. Afraid and once again alone, she sobs quietly, asking for help that she know can’t come.
Somewhere in the universe, the Doctor (currently traveling alone) gets a message on his psychic paper. All it says is, “Help me.” He of course springs in to action, tracing where the cry for help came from, and is surprised to find that it’s from a small pocket universe.
He manages to fly the TARDIS in, and when he lands, he (for once) turns on the monitor instead of simply going outside to see what’s there. He sees a young girl, sitting alone against what appears to be a large tree. She’s got her knees pulled close to her chest and is sobbing rather heavily, this is evident only by her quivering body, as she makes no sound.
Then he runs out of the TARDIS doors to get the child. The TARDIS has warned him that the environment is toxic, but doesn’t care – the girl has already been here too long.
Elle looks up and sees a man running for her, but he doesn’t seem threatening. In fact, he looks worried. Worried about… her? She doesn’t move, or make him stop. She can tell he wants to help her.
When the man is in front of her, only perhaps a foot away now, he stops, and kneels down so that he’s at eye-level with her.
“Hello,” the Doctor says, with a small but kind smile, “I’m the Doctor,” the child flinches at the word. “I know you’re frightened, but it’s going to be okay. I’m here to help.”
Elle stares into his eyes for a few moments, then nods as though she’s decided to trust him. The Doctor’s smile grows a little now that he knows she’s not afraid of him. “What’s your name?” He asks gently. She stares at him again for a moment before answering in small voice, “Eleven.”
“Well, Eleven, we need to get you out of here. Will you let me help you?” She nods again and wraps her arms around the Doctor’s neck – they both know she’s too weak to walk.
Once they’re safely in the TARDIS he puts Eleven down on a small chair that the TARDIS has provided for her. The Doctor goes to the console and take them into the time vortex where he knows they’ll be safe. He then goes back over to the little girl, Eleven, and kneels in front of her again. Now that he gets a good look at her he can see what a mess she is. Her face is stained with tears and blood, there’s even dried blood that had come from her ears. He doesn’t ask what had happened though, he already has a pretty good guess.
Instead he asks, “Where is your home?” This time she doesn’t need to take any time to answer and says “Mike.” “Who’s Mike?” “Friend.” She smiles very slightly when she says the word, and the Doctor understands. “We’ll find him. I’ll get you home, I promise.” She nods, and then she does something he finds a bit odd. She places a small hand on his chest, feeling his hearts beating. Then she looks into his eyes again, seeing how old and how sad he is, and she says softly, “Eleven.” The Doctor smiles just slightly and nods.
The Doctor had got her home safely. She’d insisted that he meet her friends before he left, and they never forgot the strange man in the bow tie who brought Eleven home.
Years pass – for both of them, many for the Doctor, only a few for Elle. Something goes wrong; the bad people are back. She remembers the last time she was afraid and alone and who helped her. So she uses her powers to try and contact the man – the other Eleven.
And he comes. But he’s different this time. He’s not wearing a bow tie now, and his hair is grey. His face is different too, not just older, but different. However, when she looks into the man’s eyes she knows that it’s him.
Eleven smiles and puts a hand on the man’s chest, feeling the unmistakable vibration of two hearts beating, and says “Twelve.”