(I'm gonna combine two episodes because I feel like one isn't enough)
Bruce was standing in a room, he had a shaven head and a gown on. He looked at a book that was on a podium that read 'Basic Fighting Techniques'. Bruce stopped looking at the book when he heard Martin's voice over the intercom
"Bruce I want you to learn from that book"
He complied and put his hand on the book while closing his eyes, a few seconds later his hand turned black before he opened his eyes with no sign of pain in them. He then heard a door open and six men came into the room as he heard Martin again
"Now who wrote that book?"
Bruce looked at the book for a few seconds and closed his eyes again. An image then burned into the front of the book to reveal that the image was a face of an old man, matching none of the people in the room except the face of a man who was in another room reading the same book. Martin saw the picture and smiled at the results.
Bruce heard the door open again to reveal two men in the same outfit who went up to Bruce. He looked at the two before walking out with them to a hall, but he heard the sound of sobbing on his way. He immediately stopped in front of the room and tried to go in only to be stopped by the guards, he looked at them with his first emotion, Anger. He grabbed the throat of the first guard with his right hand and dug his claws into the man throat before ribbing it out. The other ran away but stopped when he felt that his ankles were cut, he started to crawl but dropped dead when a claw dug itself into his brain.
Bruce walked up to the same door and opened it to be met with a girl that has the same gown he had along with a shaven head but wasn't bald like him. He looked at her arm and saw her number, Eleven, he walked up to her but she crawled into a corner in fear. Bruce put his hand in the air before kneeling in front of her and studying her more.
She relaxed at him and looked at his wrist but didn't see his number so she pointed at it, he responded by pulling his collar down to reveal his number, three. Before anything could happen, Bruce heard a footstep and turned around to see Martin who looked at him with a scowl but it went away when he saw the stance he was in. Unknown to the boy he protectively stood in front of Eleven with his claw in front of him.
~~~~~~~~~~~~~~~
He awoke instantly to a giant library, he knew this place all to well. He looked in front of him to see a podium with a large book on it, he opened it to see all the information he learned from the radio inside of it. He read through it to see that a creature took Will and he was now in a dark and evil version of the real world. He saw pictures of the creature and pictures of different events that happened, Bruce knew what these were too. They were pictures of events that already happened. One picture showed where the creature came from which surprised him.
He studied the creature more before realized something, he closed that book as it flew off onto a shelf while another book flew to the podium which he immediately opened and flipped through it to see the same creature but in a different position as if it was chasing something. He remembered that El told him about the same creature during her time in the bath.
"So this is what it looks like. But what does it want from us...?"
Bruce kept going and looked through different books to find nothing important about it. Before he could continue he felt himself shake, he was confused for a while until the library around him dissolved into nothing which told him what was happening, he's waking up.
~~~~~~~~~~~~~~
Bruce jolted up to see that he was in the basement of the Wheelers which confused him but he ignored it as he grabbed something in his pocket and pulled it out to reveal the same black device from a few days ago, his eyes widened but he didn't know where. He looked around and stopped on a map that was on a table near him, he looked at it to see that a junkyard had '003' on it. Bruce smiled since he knew El did it. He quickly left the house with his bike and rode to the location at his top speed.

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003 (Stranger Things OC insert)
FanfictionThis story is Stranger Things with certain things changed with my OC. It'll mostly have a 3rd person perspective from my OC (I do not own anything here except my OC)