Day 1
Mike
The way that Eleven sat passed out made him even more anxious given the situation.
"Eleven?" he cried. "El?"
"She just needs to recharge, Mike." Lucas says, attempting to get them to head into a classroom before they became the Demagorgan's next meal.
"No, this is different," Mike says. "She's not waking up. Help her up, we gotta get out of here!" Lucas, Dustin and Mike hurriedly pick her up and run through the hallway before stepping into a biology classroom and laying her down onto the table. Her eyes groggily open, but she is still too weak to sit up on her own, settling for laying there on the table. Almost immediately, the gunfire picked up again, coming closer and closer.
"Just...just hold on a little longer, okay?" Mike says softly, taking her outstretched hand. "He's gone. The bad man is gone. We'll be home soon," he whispers frantically, gunfire still echoing in the background. Eleven begins crying. "You can eat as many Eggos as you want, and...we can go to the Snow Ball." A smile forms on Eleven's face.
"Promise?" she says, so soft that her voice cracks from tears.
"Promise," he responds, without hesitation. A loud growl is heard from outside the classroom. Suddenly, the gunfire ceased and there was only a deafening silence.
"I-i-is it dead?" Dustin asks, trembling.
Bang...Bang...BANG.
The door comes down with the weight of the Demagorgan riding it. Lucas begins fumbling with his equipment as the Demagorgan makes its appearance inside the classroom. Its breath and growling say without words how hungry it is.
"GO GO GO GO GO!" yells Mike, desperate to protect Eleven.
"Lucas! GET THE WRIST ROCKET!" Dustin screams. Lucas shakingly grabs the rocks out of his bag.
"GET THE ROCKS, GET THE ROCKS!" screams Mike over and over as Lucas loads them into the wrist rocket. He hits the Demagorgan a few times, but to no avail.
"KILL IT!" The boys scream and begin to crowd behind him as he takes his shot with the final rock. As the rock hits the Demagorgan, the creature goes flying backwards into the chalkboard. The boys stumble back a bit, aghast that something so small actually worked. However, their feeling of power is short lived as Eleven pushes past the two boys in her way.
"Eleven, stop!" Mike cries, but with a flick of her arm, he is thrown backwards. She takes one final look at Mike, and a moment is shared between the two. In that moment, Mike realized Eleven was going to sacrifice herself to save them all. His eyes begin to tear up.
"Goodbye, Mike," she says, confirming his worst fear and causing the first tear to fall. His limbs fall at his sides, but he doesn't even notice, caught in the look in her eyes which would stay with him forever. She smiles slightly, then turns around.
The Demagorgan screeches at her, desperately trying to get free and devour her, but her stare remains firm and angry on it.
"No more," she calls to it, and lifts her arm, palm facing the creature. It reaches out for her, but she is too powerful to let it get to her. Her hand begins shaking and she feels the power inside of her, feels the anger at how this is all her fault and Papa made her do this. Her screams echo throughout the room and into the portal which forms itself through black dust and sips her very essence in, bit by bit. Her voice becomes more distorted and more tainted the more she destroys the creature from the inside out.
When Mike blinks once and opens his eyes again, the black dust is still there, but she is gone.
Eleven
She wakes up and at first thinks that she is dead. However, a quick look around confirmed her even greater fear.
The Upside Down...
She begins breathing erratically and stands up. The walls, floors, and just about everything were covered in what looked to be vines, webbing their way throughout the school. However, these vines she didn't want to touch because she could automatically sense the evil radiating off of them.
"Mike?" she calls, running around in circles. "MIKE!" she shouts again, repeating the name as if calling for him would magically sweep her away from the Upside Down. Her eyes fill with tears as she runs throughout the halls, desperate for someone from Hawkins to hear her. As she calls for Mike a final time, she notices a red glow from the end of a hallway in front of her.
She runs towards it, skidding to a stop and peering through. Men in lab coats walk through and are about to shine a light into the upside down before she ducks beside it, out of view of the scientists. The light glares through and lingers for a moment, then it is gone. When she believes they are gone, she turns back to face it, only to find that the gate has now disappeared.
"No! No!" she cries, tears beginning to fall. "Mike! MIKE! No!" Her world seems to collapse in on itself, and she runs through the halls until she finds her way out of the school. Once outside, she looks up at a red sky, with lightning illuminating the sky with an aura of pure evil. Her eyes are frozen in it, mesmerized, until she remembers that her friends are safe, but she has to find somewhere to survive.
She runs towards Mike's house and finds it locked. The door unlocks and she runs inside and downstairs, to the blanket fort she loves so much. Shivering, she grabs some of the blankets and covers herself in them. Her breathing becomes more and more frequent and she squints her eyes shut and lets out a scream of frustration, which moves some of the furniture in the room. Holding the blankets close to her, she begins sobbing.
"Mike," she whispers. "I'm sorry." She opens her eyes again before grabbing one of the blankets and using it to cover her eyes.