Author's Note:

So, I haven't posted anything on my account in forever, and I wanted to try something I'd never done before. I'm going to do a crossover between percy jackson and marvel…

So in the marvel world this story's going to take place after Endgame (in 2024), but in the Percy Jackson world it's going to be after Blood of Olympus. I had to do this because I found out that Percy was born in 1993, making him 30 during Endgame.

The only change in the marvel world: everyone's still alive after Endgame, because you know… too sad… so Tony and Nat are alive, and Steve's not old.

But for what I have planned, Percy needed to be a little younger and close to Peter Parker's age. After Blood of Olympus Percy's around 17, so I figured that would be pretty close. I hope this is pretty good since I haven't posted in a while!

Clint posted up in his precious vent fort, waiting for the right person to come around the corner. He held a Nerf machine gun in his hand, aimed at the floor and ready for his target.

"Yeah, so basically we have a ton of cool people here. I mean, there are a lot of things to do. Pools, punching bags, all the food you'd ever want," Steve's voice drifted into Clint's vent post. He grinned and adjusted his finger on the trigger and waited for Steve to round the corner.

"Cool, man. But… but I've got some people who don't like me, Steve." Clint didn't recognize the second voice.

"They're going to like you. He knows that it wasn't you, Buck."

Buck.

Clint took his shot and nailed Steve in the back of the head with a red Nerf bullet.

"CLINT BARTON!" Steve looked up to the notorious fort that Clint was known for posting up inside. Clint laughed, jumping down from his post to go get someone else. Bucky eyed Clint, thinking to see if he remembered him from anywhere.

"Hey. Sorry, man, gotta have fun around here." Clint looked at Bucky with a smile.

"Bucky, this is Clint." Bucky gave Clint a small grin; something he wasn't used to. The last time he could remember that he genuinely smiled was when he spent his time in Wakanda.

"Hi," Clint said, holding his hand out for Bucky to shake. "Steve's talked a lot about you." Bucky shook Clint's hand, surprised that someone was being so nice to him. He hadn't felt compassion from another person in so long, a simple handshake meant the entire world to him.

"I hope it's been good," Bucky replied with a grin. Clint couldn't begin to see the Winter Soldier in this man; he seemed too kind and soft-spoken.

"Hey, no worries. Steve thinks highly of you." Bucky smiled, genuinely. He was excited that he had gotten this far in a human interaction. His therapist told him that it was good for him to talk to people, but there were very few people in the world who were willing to strike up a conversation with the Winter Soldier.

He had almost forgotten how it felt to smile.

"Good, good."

"So do you watch sports?" Bucky hadn't watched a baseball game in so long, he almost forgot what it felt like.

"Yeah, yeah. I love baseball, and I've kinda gotten into basketball." Bucky could talk for hours about baseball, but even that had gotten harder. He no longer knew all the names and stats of the players, the most promising rookies, things like that.

Most of the players that had been around when he last watched a game were dead.

"That's crazy! I love baseball," Clint replied. Bucky wasn't ready to admit it to himself, as much as he wanted to.

He thought he was making a friend.

"I mean, the season isn't too far away, so maybe when it starts we could go catch a game," Steve said, trying to help Bucky out.

"Yeah, definitely. That'd be cool," Clint replied, grinning at Bucky and tossing the Nerf gun back into the ceiling.

"Hey, I'm gonna wait for Nat. Don't tell her I'm here," Clint said as he climbed back into the ceiling vent.

Nat.

That instantly clicked in Bucky's brain.

"See you, man!" Bucky and Steve walked away, and as soon as they were a decent distance from the vent Steve turned to Bucky as they walked.

"What are you thinking?" Bucky looked up from his laser focus on the floor, not even realizing that he had zoned out.

"What do you mean?" Bucky knew that Steve had noticed his expression.

"You're thinking about something. I can tell, I've known you my entire life," Steve said. Bucky turned to Steve.

"Where's Nat." He didn't say this as a question; more as a statement, because he wanted to know.

He needed to know.

"She's probably in the living room, but I gotta ask: why?" Bucky looked at Steve, the memories of the Red Room behind his eyes.

"I have to know. Where's the living room? This place is a maze," Bucky said, his blue eyes looking everywhere but at Steve.

"Umm… top floor," Steve replies. "But why, Buck?" Bucky finally looked Steve in the eyes.

"Because I'm supposed to be making amends, and… she's someone I need to talk to." Bucky pressed his lips together, his eyes meeting Steve's confused expression.

"It's something I need to do, man, because I don't know if I can stay here and not talk to her." Bucky walked off back to the elevator, retracing the steps that he and Steve had walked minutes ago.

He stepped into the elevator, pushing the button with his metal hand and waiting as the door shut behind him. He had to do it, he just didn't know how.

He thought about ways to apologize as the elevator climbed the floors to the top of the Avengers Tower. He decided to just wing it, since he had never been good at apologies anyway. When the ding of the elevator sounded, Bucky took a deep breath and looked around the room. As soon as he saw her, he remembered; the red haired girl that was among the top of her class. She had brought out the small sliver of himself that he still had as the Winter Soldier.

"N-Natasha?" Nat looked up from her book to see the man standing just outside of the elevator. She recognized him instantly, from the war between Steve and Tony.

"Bucky?" Bucky breathed an internal sigh of relief that she remembered him.

"Hi," he said softly, nervous that she would get angry with him or be afraid of him.

"Steve said he'd be able to bring you here," she said, smiling.

It made Bucky feel terrible that he was about to take the smile off of her face. Even after it had been done to him almost permanently, he still couldn't bear to do it to someone else even for a couple minutes.

"Yeah, he was pretty pumped. So, I was going to talk to you about something," Bucky began as he walked slowly toward the couch that sat next to Natasha's chair.

"Anything." Bucky swallowed hard, looking down at the floor in front of him.

"Natasha… I'm sorry for the Red Room." Natasha leaned back in the chair, remembering all the days she had to fight against him but was never able to beat him.

"Bucky, I've moved past that. I forgave you as soon as I left the Red Room. But thank you. I know how hard that is, because I've done it so many times. And I know it wasn't you." Bucky looked down at his hands, relieved that she hadn't tried to punch him in the face or tackle him.

"I think that you held me to the little part of myself that I still had, because I think I saw myself in you. Someone forced into doing something they were way too young to do, and you were just doing your best. And destroying what you were doing," Bucky said. Nat smiled.

"What do you mean, 'destroying'?" Bucky gave her a small smile.

"You were a crazy good fighter. Like, top of your class good. I actually had to try," he said with a chuckle.

He hadn't laughed in so long, even in the slightest. It felt… nice.

"Wow, getting a compliment from someone like Bucky Barnes. That's crazy," Nat said with a smile. Bucky thought about where he had seen Clint, and then he decided to help him with his prank.

"Hey, I think Clint wanted you for something. I think he's in the kitchen," Bucky said, knowing that Nat would walk right past his vent fort on the way to the kitchen.

"Oh. I'll meet him down there," Nat said. "Want to come with me?" Bucky shrugged and stood up, following Nat to the elevator.

"I don't remember the last time I ate anything, so I might grab something while I'm there." Nat pushed the button, sending them down to where Clint had jumped into the ceiling with his Nerf gun to wait for a target.

"So what do you guys do around here? Like, for fun?" Bucky asked this question softly, as if he was afraid to ask it. He had talked quietly the entire time he had been here, mostly because he was afraid of being disliked. No matter how many times Steve had reassured him that he would be welcome, the nervousness still persisted in the back of his mind.

"A lot of times we'll go to different places, like a pool or a beach, and we'll just spend an entire day there hanging out and running around. Sometimes in the winter, we go ice skating on the lake at Tony's cabin." Bucky's mind went back to the last time he had been skating, when he was a kid. All the kids in his neighborhood (plus Steve, of course) brought their skates down to the local pond and would play on the ice, starting games of tag and even racing the length of the pond.

"About ninety five years ago, I could beat just about anyone in an ice skating race," Bucky replied with a grin, the elevator dinging and opening.

"Really? I'm terrible at it," Nat chuckled. Bucky could see the vent where Clint had ambushed Steve about five feet ahead.

"I haven't ice skated in almost a century," Bucky said with a grin. His eyes flitted up to Clint up in the vent as they passed, and Clint took his aim and fired a blue dart at Nat's head.

"Clint!" Nat took the bullet off of her shoulder, throwing it up into the vent.

"How do you guys know that it's Clint every time? I probably would've suspected Peter," Bucky said with a grin. Clint jumped out of the vent and landed on the floor, holding the brightly colored gun in his right hand.

"Hey, that was awesome," Clint said to Bucky, holding his hand in the air. Bucky slapped it, shooting Nat a small smirk. "Peter's hanging out with friends, but he should be home in about half an hour and Clint's the only one that could be so accurate." Bucky shrugged and gave Nat a look.

"You might be surprised. Can I see that?" Clint handed the Nerf gun to Bucky, who turned it over in his hands a few times. He held his arm straight out to his side, aiming the gun down the long hallway.

"See that light switch down there?" The rectangular light switch was about the size of a pink eraser, and was activated when someone pushed it.

"There's no way that you can hit it. That's a thirty yard hallway," Nat challenged him. Bucky looked at her, opposite the direction of the gun barrel, and fired the gun. The foam bullet soared down the hallway, hitting the light switch with the rubber tip. Half of the hallway went dark.

"How in the world…?" Bucky grinned and fired the gun again, turning the light back on.

"Practice makes perfect," Bucky said, walking to the kitchen to find something to eat.

Sam was making a milkshake, adding the chocolate syrup into the blender before turning it on.

"Oh, great," Bucky said, looking at Sam and opening a cabinet.

"What is Creaky McAncient doing here?" Bucky couldn't help but chuckle at the nickname.

"That's pretty good," Bucky said with a chuckle.

"I have an entire notebook page devoted to nicknames for you," Sam replied.

"Really? Like what?" Sam shut the blender off as Bucky grabbed a bag of chips off of a shelf.

"You really want to know?" Bucky grinned and sat on a couch.

"Yeah, I really do."

"Nuts and bolts, tin man, cyborg, rust bucket, ancient artifact, creak city, dusty old man. Pretty good, aren't they?" Bucky chuckled, still not used to the feeling of laughing and smiling.

"I have one that's better than all of those, Sam," Bucky replied, turning around and looking at Sam.

"Really? Hit me."

"Okay, bird with sunglasses." Bucky replied, making Sam almost spit out his milkshake.

"That's… that's low." Bucky smiled as Sam sat down next to him.

"Are you… are you smiling?" Bucky looked up at Sam, who had a confused look on his face.

"Um… yeah, and it's confusing me just as much as it is you. It's been a long, long time," Bucky replied.

"Well, I'm glad we could make you smile, Buck."

Bucky couldn't even imagine how much he was going to love being here. In the half hour that he'd been in the compound, he had been happier than he had been in almost eighty years. Bucky felt almost at home, feeling like he had a few people to be able to hang out with without having to think about his past.

"What day is it?" Bucky asked from the couch.

"Um… Saturday," Sam replied.

"Well, duh. Like, what's the date?"

"March 9th." Bucky got excited for a moment, remembering his birthday tomorrow, but then realized that no one probably knew or remembered.

He hadn't celebrated his birthday in at least eighty years.

"Why?" Bucky shook his head, looking for a basketball tournament game to watch.

"No reason. Ooh, IU vs Purdue. That's a good game," Bucky said, turning on the game as Sam sat in another chair beside him.

"Since when are you a sports guy?" Bucky turned to him, turning up the TV.

"Umm… let's see… 1917, 6 years old, carry the 1… about a hundred years." Sam grinned and turned to the game, IU up by 7 with 8 minutes left in the game.

"Right. I forgot you're creak city." Bucky shook his head with a grin, running his fingers through his now short hair.

•••

Peter walked down the sidewalk with one of his best friends, bringing him to the tower for a couple weeks while his mom was on a business trip.

"So, who's all gonna be there?"

"Umm… Captain America, Iron Man, the Hulk, Falcon, Hawkeye, Black Widow, Thor, maybe the Winter Soldier, I'm not sure." The boy walking with Peter almost stopped dead in his tracks.

"The Hulk scares me, not gonna lie." Peter chuckled, opening the door to the tower and walking into the elevator.

"Don't worry, he somehow managed to put his human form into his Hulk body. He's a good guy." But the name "Winter Soldier" was stuck in the back of the boy's mind as the elevator carried them higher and higher up the tower.

The ding sounded and the doors opened, letting the two boys out. Peter and his friend instantly headed for the kitchen to find something to eat.

"Hey, Mr. Sam." Peter didn't notice Bucky at first.

"Hey, Queens. You can just call me Sam." Peter laughed and then noticed Bucky.

"Hey, Mr. Bucky! I feel like I haven't seen you in ages!" Bucky turned around and saw Peter, making him grin. And then he noticed the boy beside him.

"Bucky?"

So I don't know how good this chapter is, but I haven't written anything in a good while since school started and sports and everything. But basketball's over now and I have some more time to write, so I was hoping to start this story! Who do you think Peter's friend is?