He did it. Thanos did it. He snapped his fingers and half of all living creatures died. For most, it was painless and quick. But Peter, he could feel it all. He could feel his death coming before Thanos even finished snapping his fingers. He could feel not only his soul being ripped apart but everyones.
As his body and soul were being ripped apart his increased healing was trying to put him back together. He would get ripped apart, then out back together, then ripped apart, then put back together.
It was painful, but you would think that once he was in the soul stone it would stop right. No, his healing was still trying to put his back together while constantly getting ripped apart. He could feel every molecule, every atom in his body moving. He could feel everyone else's pain.
But, that wasn't the worst part. No, the worst part was the fact that it was burned into his mind. The last thing he saw would never leave his mind. He saw his mentor, father figure, hero. Tony Stark. Tony was the last thing he saw. He saw his scared face trying to mask the fear. Trying to be strong for Peter and not show him how afraid he really was. That was the worst part.
Peter thought that maybe if he could find that sorcerer dude who fought with them that maybe, just maybe he could help. So he went and looked around the empty, yellow land he found himself in. He could feel himself getting closer to people as the pain kept growing, but his continued on his way.
He eventually found Dr. Strange who happened to be with the rest of The Rouge Avengers and Guardians. Normal if Peter had seen them, he would have been pissed beyond belief, but currently, he was in too much pain to tell.
When Dr. Strange saw him, he rushed over to make sure he was alright. The Guardians and Avengers saw and recognized him either from the airport or Titan. They also went to see if they could help.
The closer they got the more pain Peter was in. Wanda saw this a tried to calm his mind, but all she saw was the pain. Wanda and Mantis were able to relive some of the pain temporarily, but it took a lot of energy and they would tire quickly.
-(A few months later)-
It was so painful. The Rouges and Guardians all thought it was getting better, but the truth was Peter was getting better at hiding it. Wanda and Mantis were having more trouble using their powers and were only able to use it for short amounts of time.
Peter knew he should be stronger. He was Spiderman after all. He should be able to handle this, but he just can't. Not anymore at least. It was all just too much. He knew this wasn't what Tony would have wanted, but Tony wasn't here right now was he.
Peter had found a knife on the groups' journey through the soul stone. It was a balancing knife with a blade on each side and red stones engraved in it.
Everyone was asleep now, as they had traveled a long time looking for a way out of the stone. Peter was sitting a few hundred yards away watching them all sleep peacefully.
"I'm sorry, Mr. Stark," he said as he plunged the knife into his stomach. For a second everything was clear. There was nothing, no pain, no spider-sense, nothing. Just peace. Then it all came back to him, his parents, meeting Ned, Oscorp, Ben, his powers, Civil War, Vulture, MJ, May, Thanos, and Tony. Tony was the last thing he thought of. "I'm sorry, Dad," he said as he died with a smile on his face, for he felt more at peace then he had for a very long time.
Wanda woke up with a jolt. She had suddenly felt extreme pain shot through her but couldn't tell where it came from. She heard a small whisper of "I'm sorry, Dad." She turned to see where it came from and when she did she broke and screamed.
Everyone woke up and turned to find the source of the scream, Wanda. She was kneeling next to something that they couldn't see. As everyone walked over to her they saw why she screamed.
Peter.
He was slumped against a tree with a knife plunged into his stomach.
They barely had time to registered what had happened before they saw themselves turn to dust again.
They all reappeared in The Avengers Compound and were greeted with hugs and tears from everyone. Everyone who had lost someone from the snap had them back. Well almost everyone. Wanda had been looking at her hands since they had returned.
After the noise died down everyone looked at Tony. He was still pacing like he had been before everyone came back.
"Tony relax, everyone is back," Steve said, "We won."
"Where is he, Strange?" Tony asked. Everyone who hadn't been dusted was confused. The dusted had a look of realization on their face. Peter, Spiderman.
"Who are you talking about, Stark?" Clint asked.
"Peter," Wanda whispered. Tony's head snapped up to her as everyone looked towards her.
"How do you know him?" Tony asked.
"I'm sorry. I..I tried my best. I cou..couldn't help him. I'm sorry. It was too late." Wanda cried as she turned around. They saw her hands, they were covered in blood and she was holding a balancing knife. "His senses got too much for him. I'm sorry."
That was the first time any of The, now Avengers, and Guardians had seen Tony Stark truly broken.
None of the Avengers had met Peter and had only briefly seen him as Spiderman, but his death had taken a toll on everyone. Those who had been dusted with him had become more distant because they were surrounded by guilt for not doing more. Wanda would just stay in her room all day, only coming out for meals. Bucky and Sam would train all day or lock themselves in their room. T'Challa would focus more on his duties as king and Black Panther and would ignore many other things. The Guardians became distant and wouldn't talk to anyone. Dr. Strange put all his efforts into destroying every stone he found.
But Tony took it worst. He didn't do anything. He didn't cry, didn't drink, he didn't do anything they expected him to do. No, instead he went to his room and just lay there, thinking, not building, just thinking. He would think, eat, sleep, think, eat, sleep, think, eat, sleep, think. That's all he did. Until it became too much one day and he was gone the same way as Peter.
