A/N Thanks to reviewer zezily for giving this idea! What idea, you ask? You'll soon find out! Or you could, you know, just look at the review column. But that's not fun! Speaking of reviews, PLEASE REVIEW AND/OR FOLLOW AND FAVORITE! Constructive criticism welcome. Useless criticism not welcome. Supporting criticism HADES yeah!

Tony Stark

Tony knew that if anyone could tell you about someone's life, a mother could. Which was why he was going to Percy Jackson's mother, Sally Jackson Blofis.

Okay, it was low. But they really needed answers. If these kids were going to be really and truly Avengers, they needed some way to confirm that they were on the right side. Hopefully Ms. Jackson would be cooperative. He walked up to the Jackson's apartment and knocked on the door. There was shuffling. "Just a minute!"

Tony tapped his foot impatiently. The door opened. Standing there was a heavily pregnant middle-aged woman, with the tired face of a mother.

"Mrs. Jackson, I have some questions about your son, Percy Jackson. May I come in?" Tony asked, though it wasn't really a question. Mrs. Jackson looked him up and down.

"What does Tony Stark want with me and my son?" She gave him a small smile, but she was scanning him closely.

"I'd like to discuss it inside, please."

"All… all right." She pursed her lips and gestured for him to come in.

Tony walked into the Jackson's small apartment. He looked closely for anything unusual and failed. The only reference that Sally Jackson even had a son was a picture of her, Percy, and Annabeth with their arms around each other. Percy looked around sixteen.

More and more proof that Annabeth knew that Jacksons.

He sat down on the sagging couch. "So, Mrs. Jackson." He pulled out his phone and discretely pressed the record button.

"Can you tell me who your son's father is?"

Sally raised her eyes to the heavens and murmured something. "It's private." She said finally.

"SHIELD doesn't even know who he is. Surely you would know?"

She pretended to be interested in a spot on the couch. Tony licked his lips and sighed.

"Has Percy told you that he has been inducted into the Avengers Initiative?"

That got her attention. "You mean… he's with you people now?"

Tony didn't particularly like the way she said 'you people.' "Yes, has he not told you?"

"I haven't seen him in a few weeks. He disappears often—"Her eyes widened and she abruptly stopped talking, which was all the confirmation Tony needed that she had said something she shouldn't have.

"As in, eight months, often?"

She chewed the inside of her lip. "He's a busy kid."

Tony waited, but he wasn't about to get anything else out of her. "Mrs. Jackson, we have suspicions that your son is an enemy to the United States. We don't have enough information to dismiss that readily. I need something that will confirm that he's on the good side."

Percy's mother had the nerve to laugh. "My son is more of a hero than you'll ever be, Mr. Stark. And I'm sorry, but isn't it against the law to question someone without any good proof?"

Tony's face hardened. He was pretty sure that he had just been called inadequate compared to a teenager.

"Okay, that's why I'm here. Can you at least tell me what he did to become so heroic? Saved an old lady from being hit by a bus?" He said sarcastically.

Mrs. Jackson laughed again. "Actually, he did, once. But no. I'm afraid I won't be able to tell you anything at this moment.

At this moment.

"We'll find out somehow." Tony said, a little threatening. "You may be sorry you didn't tell us anything."

Percy's mother rose from the couch. "I don't know what you're doing in my son's life," She said. "But you had better stay out, or you'll be the one who's sorry."

The door opened. Percy walked in. "Hey mom, sorry I haven't been back in a while, it's been a crazy couple of days—"

He froze and took in Sally and Tony Stark standing nose to nose. He scowled with anger. Apparently those eyes could actually be pretty scary.

"Get out." Percy said, breathing heavily.

Tony stayed where he was. "I don't think you have any authority to—"

"I said get out!" He yelled.

Tony still didn't move, but he got the uneasy feeling that he had gone too far.

"You can kidnap me." Percy shoved Tony towards the door, who laid a hand on a metal band that summoned his Iron Man suit.

"You can insult me and my friends. But you don't, under any circumstances, threaten my mother. Okay?"

There are few times in his life that Tony was left speechless. This was one of those rare times.

"Don't make me regret joining the Avengers. Hold up, I already do."

Percy slammed the door in Iron Man's face.

Tony stood there, shocked. He could barely move. He had to admit that he was glad that Percy Jackson was on their side, at least until the evidence proved it.

"Are you okay, Mom?" Percy's voice came out of the apartment.

"Yes, honey. You joined the Avengers? Why am I not surprised?"

Tony walked out of the apartment complex. He would not be visiting the Jacksons for a while.

Leo
Camp Half-Blood

The demigods of Camp Half-Blood were having a meeting.

All of the head counselors were present. Even after a year at Camp, Leo still had trouble remembering their names. Percy and Annabeth were sitting next to each other, whispering. Next to them were Jason and Piper, along with Nico and Will Solace. Frank and Hazel were allowed to come, since they were visiting, and technically heads of the 'Mars' and 'Pluto' cabins, even though those ones didn't exist.

Let's see… Clovis from the Hypnos Cabin was snoring, as usual. Clarisse was sharpening her spear with her boots on the table. Lou Ellen from the Hecate cabin had conjured a pink pig (Leo did not want to know what it used to be) and Miranda Gardner from the Demeter cabin was trying to see how many sprouts the pig could eat before it threw up.

Butch from the Iris cabin was absently drawing a Pegasus with rainbow wings, while Conner Stoll from Hermes was sarcastically making suggestions on how to improve the drawing. Butch seemed to take these requests very seriously. Rachel Dare was doodling on her pant leg.

"Let's come to order." Chiron said. Was it just Leo's imagination, or were there more worry lines on his forehead than usual?

"Butch, the Harpies hate covering up your Pegasus drawings. Lou Ellen, please restore that pig to whatever it used to be. Clarisse, no spears at the table. Some of our campers have some things to say. Annabeth, you may begin."

Annabeth sat forward and starting telling everyone the business with the Avengers. It must have been a pretty good story, because by the end Clovis' eyes were wide open.

"… So we need your opinions on some things." Annabeth finished. "Should we tell what's-his-face, Fury, that we're demigods? Or should we just let them assume that we're really, really good at fighting?"

Like Annabeth had guessed, none of the other demigods wanted anything to do with the Avengers, because they had enough on their plates. They did have pretty strong feelings about what should happen though.

Clarisse thought that they should beat them all up until they were too scared to ask any more questions. Piper quickly vetoed that idea. Conner Stoll thought that they should trick them into thinking that they were from the moon.

"Um no." Percy said immediately. Finally, Rachel Dare said the only idea that would actually make sense. "What if you keep it a secret until an actual crisis? Then they'll only find out when they need to know."

"That could work." Annabeth said slowly. "Yeah, I think it would."

"Plus," Jason added quickly. "Plus, we don't even know that anything bad will happen. Maybe we'll go our entire lives without even being bugged by them again." Leo wished that their luck could get that good, though he highly doubted it.

"Okay." Chiron said. "Meeting adjourned. You may go." Everyone but the seven and Nico left.

"Which means we only have one issue left." Leo said in a serious voice.

Annabeth sat forward, looking concerned. "What? Did something happen?"

"We need superhero names!"

Annabeth groaned and leaned back on the table. "Please no…"

All his other friends looked confused.

"Oh, come on guys." Leo said, exasperated. "We can't be Avengers without superhero names! You know, when we fight evil monsters and robots, we need to have secret identities! So that when we blow up cities and stuff, we won't get in trouble. Sorry, I mean if we blow up cities and stuff. We can't just use our names, because then the government will try to figure out what we are. So, if we're having fake names, we might as well have cool ones.

"Oh," Percy said, catching on. "So like, Jason would be 'Sparky'?"

"Only if you're 'Seaweed Brain.'" Jason said quickly.

"Only Wise Girl can call me Seaweed Brain. I'm sensitive." Percy put his arm around Annabeth.

Leo pointed to everyone in turn. "Percy is Seaweed Brain, Annabeth is Wise Girl, Jason is Sparky, Piper is Beauty Queen, Hazel is… hmm, Rich Girl?"

"Definitely not." Hazel objected.

"… Nico can be Ghost King, aka Death Boy, and Frank is Elephant Man!"

"Leo!" Hazel scolded him.

"What? I'm just sayin-oh. Sorry."

"It's fine." Frank said quickly.

"Okay, seriously." Percy said, fighting a grin. "We really need secret identities. Like, cool ones."

"I'm Batman." Leo said suddenly in a very deep voice. Everyone busted out laughing.

Somehow they managed to control themselves, but it took effort. Finally the demigods decided on cool names, even with Leo interjecting and cracking jokes when the timing was right. There were many threats on his life during this period.

Finally they figured out their fake identities, luckily without any spandex or tights. "Alright," Annabeth concluded. "Percy is Tsunami, I'm Owl, Jason is Shock, Piper is Charm, Nico is Ghost King, Hazel is Platinum, Frank is Beast, and Leo is Blaze."

"Frank is Beast." Frank agreed. Leo started laughing. Annabeth ignored them.

"Leo, could you make us some steel weapons?" Hazel asked. "We'll probably be fighting mortals and their stuff, so Celestial Bronze and Imperial Gold won't do anything."

Leo grinned. "Sure. I'll make my peeps the most butt-kicking weapons in the history of awesomeness!"

Leo asked for orders, and it took about a week, but finally the newest Avengers had their mortal proof weapons. Leo finally felt prepared for whatever was coming. After all, what mortal could kill or injure the greatest demigods of the age?

A/N I got some of the demigod's superhero names from another PJ/Avengers crossover, but they haven't updated since last year so I think it's good if I use them. I decided to say that just in case though.