A/N: Never wrote an avengers story before. But this was inspired by several games I played. Here are the tags from AO3:

Flashbacks, Time loops, Psychological Horror, Alternate Universe, Time Travel, Multiple POVs, Character death

Sam Wilson

It wasn't what he expected, he was allowed to say that right? It was his first official avengers mission and maybe he was disappointed. "And they're stuck in there?" he asked. He looked to Natasha for confirmation and she simply nodded. "Okay." he looked back to the mansion. Just a simple mansion, it wasn't even that big. Yet, Bruce Banner and Pepper Potts were lost in there and they had been for 2 days now. But he just couldn't believe they were lost in this place.

It looked beautiful, too beautiful. Maybe that was why they were here? Was this a joke mission? Maybe she just wanted to see if he could handle a stealth mission before actually sending him on one. He'd only really trained with Steve at the base, but he was more then sure he didn't need this.

"They went in exactly two days ago and according to Tony, some dark creature attacked them." Natasha said. Steve had briefed him about this just hours ago, but that was all the information they had. Tony had only given them so much before he passed out and was rushed to surgery.

"So we're just going to look for them?" Sam asked. If something had attacked them, wouldn't Bruce have Hulked out? He wouldn't get stuck here would he?

"Yes." Natasha said, "We're doing this one floor at a time, according to Tony there are only 3 floors and they were attacked on the 3rd floor."

"And the monster?" Wanda finally spoke up. Wanda was nervous, he could tell. Her first unofficial avengers mission had been fighting Ultron's robots. Sure, that was a big mission but this was different. It was a stealth mission and her first mission since she lost her brother. She wanted to do well here, but she had no idea what she should have been expecting.

"We have orders not to engage it." Natasha said finally, although it was clear she didn't really agree with that, "We don't know what we're dealing with and we're only here to Find Bruce and Pepper. But if we encounter it, I'll give the orders then"

"Right." Wanda nodded and they headed up the steps. There were two potted plants on each step and they looked well cared for. If this house was really as old and untouched as they claimed, why did everything seem so well kept? There were no loose floorboards on the porch, no peeling paint or dusty windows. The house was in great shape.

Natasha pushed opened the door, her eyes narrowed slightly as she entered. The doorway was dark he couldn't see inside, "It's clear." she said quietly but he heard her clearly through the headset they were all wearing.

He and Wanda exchanged glances before they entered. It was well lit inside, despite the fact that he hadn't been able to see a second ago. "No sign of an attack here." she murmured. These notes were more for herself but he still listened closely. He wasn't used to this kind of work. He was The Falcon and he was used to flying into battle, he had combat training, but sneaking around and whispering wasn't his style. He still couldn't get used to any of the hand signals Natasha flashed at him.

To his right was a thud and he turned quickly, "Did you hear that?" He stared down the hall and into the room where he'd heard the noise. It was dark and he couldn't see anything.

"Yes." Natasha said, "Check it out."

"Me?" he questioned. Now that they were in the mansion, he was starting to realize how real this was. There was a since of dread hanging in the room and he was almost wishing that this wasn't real. He hadn't even been this worried when he helped take down Hydra and they'd faced an entire organization then.

"It's a room away, Wilson." Natasha said, "We'll be right here. You know what to do." He nodded, and stepped away from the group and down the hall. He was curious about the creature that had attacked Tony, but he definitely wasn't ready to see it. He didn't know anything about it. Still, he was expecting someone to turn on the lights and shout surprise, once he entered the room.

He entered the room and looked around, nothing. It was a kitchen and a bowl of fruit had fallen off of the table. He rolled his eyes and walked over to it. "It's just fruit." he said into his headset.

"Fruit?" Wanda responded, "But it is an abandoned mansion."

"There were people here recently, maybe they put it here." He said, "Now what knocked it off the counter is a different question." There was nothing around, no creature, no mice, nothing.

"What else is in there?" Natasha asked.

"It's a kitchen." he said.

"Alright, anything suspicious besides the fruit bowl?" she asked. He wasn't sure what she wanted him to see. "Examine your surroundings, Wilson." This had to be a test, was there something here he was supposed to be seeing?

"Okay, There's a tiny table with 2 chairs sitting on one side and another chair on the other side." he said, "The last chair is turned towards the kitchen like someone was sitting there." He walked over to it and felt it, "It's warm too, someone was definitely sitting here." He immediately began to check for more doors, "There's no other way out." So where did this person go?

"Natasha..." Wanda whispered. The headset crackled and he heard Natasha give a few orders that he couldn't understand.

"Guys? I didn't catch that." he said quietly. He looked out of the door and down the hall and didn't see Natasha and Wanda waiting there as they had been. "Hello?" His headset buzzed quietly and he tapped it, the signal was lost. He'd have to meet back up with her to get the signal re-calibrated. "Great."

He walked back down the hall slowly, still unsure what he should be expecting, maybe they'd simply moved out of sight, or maybe they'd seen the creature and ran off. Maybe this was a real mission and it had gone south already.

He stood straight and looked around the foyer, there was nothing out of place and Natasha and Wanda were gone. The front door was still wide open, but he could see that they weren't outside... So where did they go? The headset sprang to life and he jumped. "Wilson!"

"Yes?" he looked around, "Where are you?"

"Upstairs!" Wanda shouted. There were gun shots and the headset went dead again. This time he'd heard where the shots came from and he rushed off in that direction. The shots continued and there was a loud roar, he stopped for a moment to take out his gun before continuing forward. He could see Wanda shooting into a room. Whatever it was, he'd been sure Wanda could stop it, but from what he could see, she was just shooting at it and wasn't using her enhancements at all.

She looked towards him and shook her head, "Run!" she shouted. She managed to fire one more shot before the creature turned to him. And then everything ended.