The usual 17 hour flight back to New York from Wakanda took only 12 thanks to Shuri's constant upgrading to every piece of tech she could get her hands on, but that didn't keep her from wishing she could have upgraded it more so they could have been there even faster. She could see the distress forming on Peter's face but there was nothing she could do about it. No matter how much she tried to comfort him, the reality of his aunt being taken hostage by a supervillain could not be overshadowed by her.
Once they arrived in new york they were greeted by Tony and Pepper at the Avengers compound. Peter couldn't even look at Tony, with the pain of losing his aunt still very fresh and Tony's failure to protect her on the forefront of his mind. Looking around Peter saw every Avenger at the mansion, from Thor to Hawkeye, everyone was there and they were all huddled around a table and conversing amongst eachother seemingly developing a strategy of some sort. Peter walked up to the table to see documents of the Green Goblin and all the information the Avengers and S.H.I.E.L.D. had on him.
Captain America was the first to come up to Peter in the other group of Avengers, "We will find your aunt Peter, I promise. Tony has gotten every piece of information on the goblin from every agency on Earth, Natasha has talked to Fury and gotten him to keep us informed on every piece of surveillance they could get a hold of, Thor has Heimdall looking 24/7 but it seems the goblin has something that can hide May from him even, we have put every Avenger on this, we will find her." he said putting his arm around Peter, "Now we have 4 of the smartest people in the world in this room to keep put all the information together. I've contacted the Guardians and they will be here shortly. Everyone is working on this..." as Cap was continuing to talk, FRIDAY alerted Tony that more people have arrived to help. Opening up the door to the compound Tony thanked some people Peter couldn't quite make out for coming and invited them in.
"Hello Peter," one of the people started, "my name is Reed Richards, this is, my wife Susan, her brother Johnny, and Ben Grimm. The Fantastic Four are also here to help in as many ways as we possibly can." Peter couldn't believe his eyes, the Reed Richards and his team of superheroes are also here to help him. He would have freaked out because he was in the room with the three smartest men and the 2 smartest women on Earth, but he couldn't get over the circumstances for all them being there. "I hear that your aunt is somehow been kidnapped but Heimdall, the one who sees all, cannot find her? Since the goblin is doing so much to try to keep her hidden from him, I think I have a friend that can help find her another way," he says as he motions to someone in a wheelchair. "Hello everyone, my name is Professor Charles Xavier, I run a school for the gifted, or as you would call them mutants, and, Peter, I think I have found your aunt."
Boarding the plane, Peter was very confused. Why would all these teams put all their resources into helping Peter, a relatively unknown and small time hero, find his aunt. The professor then answered his thought, "Peter, we are here because you are the best aspects of every hero in this room. You have the passion of Steve Rogers, the intelligence of Reed, Tony, and Bruce, the training from T'Challa, powers on par with half of my X-Men, the determination of Stephen Strange, the worthiness of Thor, the hand to hand skill of Clint, the potential of Shuri, and you are just 16. Peter you've done things in your life that most of us will never be able to and you haven't even lived a quarter of it yet. You're the person we all wish to become and you are the future of the Avengers, Guardians of the Galaxy, X-Men, and Fantastic 4. Peter, you're as close as we can get to a perfect hero and you have so much heroics left in your life. Now let's go find your aunt."
Almost 4 hours later and the Avengers landed in Colorado. Peter was familiar with the state, Ben and May took him there on a trip to Rocky Mountain National Park and to go skiing, which he quickly learned how to be proficient at but not without falling on his butt a couple dozen times, but didn't exactly know why Goblin brought May there. Almost as if he read his mind, Reed came up to Peter and told him where May was, a military bunker in Colorado Springs called the Cheyenne Mountain Complex, meant to protect the president in the case of nuclear war.
It took the combined efforts of Reed, Tony, Bruce, Shuri, and Peter to break the firewalls to gain access to the building's security so they could find out where exactly May was and make a plan around it. It didn't take long for the group to follow the path of death and destruction the goblin left and they located May in the deepest part of the bunker. Thor was ready to teleport them all into that room with his bi-frost but Reed said it was too risky because of the size of the room and May's likelihood to be killed if all of them just showed up right next to Goblin. Instead, Reed put the security controls with the guardians and Bruce telling them to keep the security cameras on loop as they entered the building Banner wanted to help but then realized releasing the Hulk in a small underground bunker probably wasn't the best of plans and agreed to stay with the Guardians.
Richards took his team and told Susan to go ahead and scout to make sure there were no traps or tripwire for all these heros to be stuck in. Not even a minute later she came back confirming traps but they didn't look like traps to actually keep heros pinned down but focused more on slowing, specifically, Peter and Tony down. Unfortunately for the Goblin, Peter and Tony weren't the only heros at the bunker. Flamethrowers were easily taken care of by the Human Torch, tasers only made Thor more angry, Reed just stretched himself over pit traps, and this kept Peter going at full strength. 10 to 15 traps later the heroes burst through the door that goblin was located in, who obviously wasn't expecting this many heroes.
Before any of the heroes could do anything they saw May strapped up to a chair which looked to be connected to some wire above a tank of water. A flamethrower was pointed at her from behind and the Goblin stood in front of her laughing. "Hello heroes. While you may outnumber me a hundred to one, I still have won. See, I didn't kidnap May Parker just to give her back. I was expecting Tony and Peter but the rest of you will be nice company for the show."
"I swear Goblin, if you touch her, I will kill you." said Peter as he debated on activating insta-kill mode on his suit. As Peter said that the Goblin just laughed and uncovered May's mouth.
May's final words were, "Peter, you would have made Richard and Mary so proud of you. You have been the best thing to have ever happened to me and Ben's greatest achievement. We love you so much Peter. Keep being the good in today's world and keep being Spider-Man, but don't lose track of yourself. The best part about you isn't Spider-Man, it's Peter Parker. I love you!" with that goblin flicked a lever and electricity was brought into the chair.
Every hero in the room rushed over to May but a force field stood in the way, Strange and Thor used their methods of transportation, the teleportation ring and bi-frost respectively, to get through the obstruction. Thor obliterated the Goblin, tearing off every piece of armor he had and almost killing the man. Dr. Strange rushed over to May Parker, checking her vital signs and using whatever magic he could think of to help her heal. It was too late. May Parker died from the Green Goblin and his electrical chair.
Once the field was disabled by Bruce and the Guardians, Peter rushed over to his aunt, the last of his family. "No! No, no, no, no, no! May stay with me. Don't leave me, too! I love you, May, I'm so sorry!" He held her, crying for an hour.
The heroes lost. For the first time since Thanos, the heroes seriously lost. They had the biggest team they've ever had and they couldn't save Peter's aunt. Wanda grieved, knowing exactly what it felt like to lose someone that close to you. Steve and Tony stood in shock, the boy protected by every hero in existence and who represented the best parts of themselves and every other hero in the room just lost the last thing that kept him going. Thor threw his hammer at the wall, blaming himself for not being there quicker. The Fantastic Four and X-Men at in silence, they didn't know Peter personally but they knew what he stood for and knew his story. Nobody deserves this, especially Peter.
Peter carried May out of the base saying nothing to the heroes who said nothing to him. The 4 hour ride back to New York seemed more like 4 centuries, and Peter lost what seemed to be his own body weight in tears.
Shuri didn't know how to comfort him, every time she got close he shut himself off from her. Ultimately she leaned on his shoulder and cried with him, May, although she didn't know her long, was Peter's only living relative and Peter's everything. Now Peter lost what made him, who he was. May was one of the last pieces of him that kept his spark going. He couldn't protect her. When he lost Aunt May, he also lost himself.