How do you move on with nothing left?

He's gone??!! What do you mean he's gone!!???!

Steve carried Peter into the med ward of the avengers compound and lashed him Gently down on the first bed and at that moment Bruce walked in and was stopped dead in his tracks when he saw Tony and Peter.
"Tony? Oh thank god your alive" Bruce and Tony hugged for a brief moment but then Tony collapsed onto Bruce.
"Woah, hey" Bruce said with clear shock in his voice. Tiny had just passed out in his arms. Steve then helped Bruce lay Tony on the other bed unconscious. Bruce did a check up on both of them and the results were; dehydration, starvation and lack of sleep.

"Will they be okay?" Nat asked with genuine concern in her voice.
"They will recover yes but a lot has happened so I'm not sure how they'll be mentally especially the kid." Bruce replied and Steve nodded still looking at the two. He still couldn't get over how truly sick and weak they both looked just laying there unconscious hooked up to multiple machines. It had been a long time since Steve and the other avengers had seen Tony sleep. But it had also been very knew to them to see Tony care about someone as much as he seemed to care for Peter so all of them wondered what kind of relationship the two had but for the meantime they would let them rest.

Peter's P.O.V

I woke with a start to a dark room and was hooked up to multiple machines and I was so confused at first but then I sat up and realised I was in the avengers compound and relaxed a little. My heart skipped a beat. The Avengers compound??!!! How? When? We were back on earth? OH MY GOD YES!! wait earth? That's when everything came rushing back in, the piercing feeling in the back of my head on the ship, the fight on Titan. The snap. Shit. I gotta get out of here.

I sat up and noticed that Tony was on another bed next to mine so I quietly removed all the needles from my arms and anything else taped to me and slowly got off the bed. My legs were a bit wobbly at first but once I got my balance and the world stoped spinning I ran down the halls and didn't stop until I heard voices. That's when I froze and realised that there is no way I'll get out the front door this way so I went to the nearest window and slowly climbed down the wall. Once I was in the ground I began running again. I knew the first place I had to check was my apartment and all I could do was prey that May was okay. The streets looked dead and yeah I get it's the middle of the night but like they were dead. There were crashed cars, abandoned buildings but the thing that made me feel so sick was all the ash and dust floating everywhere because that that was all that remained of some of the people that had been affected by the snap. But I kept on running until I reached my apartment complex then I ran up the stairs and felt like I was going to throw up when I noticed the door was unlocked and slightly ajar. I walked in after hesitation for a moment and couldn't stop the tears from coming when I saw a pile of ash all over the floor in the kitchen. My knees gave way underneath me and the question had haunted me for weeks had been answered. Next I ran to Ned's house but decided to knock this time. I was met at the door by mrs. Leeds, Neds mum. She looked like she has been crying a lot. When she saw me she just burst into tears and pulled me into a hug that was so tight and I had no escape. when she finally let go she said "Peter I'm so so sorry, Ned he... Neds gone." By now my heart couldn't take it and i couldn't bring myself to respond so I just nodded and ran again. I ran past the shopping centre, the cemetery, my school and when I could run any more I collapsed to the ground and cried and cried and cried until eventually I felt my eyelids get heavy so I went to the nearby park and fell asleep under a tree, hoping that all this would go away and turn out to be some horrid nightmare.

At the Avengers complex the next morning:

When Tony woke up the avengers comping was in chaos and he was so confused until he sat upland noticed that the bed Peter had been in the night before was empty. Next minute Bruce walked in and  his face paled when he saw Tony was awake. "Tony! You feeling better." He said thing to distract Tony but failed.
"Where's Peter?" He asked his voice.
Then Nat walked in and had the same expression on her face that Bruce did when he realised Tony was awake.
"Well? Is anyone going to answer me?!!" Tony slightly raised his voice.
"H-he's... When I came in t-this morning he..he was..he was gone" Bruce stuttered waiting for Tony's reaction.
"Tony felt his heart stop and his brain explode he must've looked pissed because Bruce and Nat looked they wanted to brace themselves.
"HE'S GONE??!! WHAT DO YOU MEAN 'HE'S GONE'???!!!!!!" Tony shouted and Bruce and Nat winced.

Tony was beyond angry. He was furious. He had spent too long keeping his kid alive and then when he gets somewhere he thought was safe the avengers didn't secure the building and now Peter was out somewhere upset, confused and angry. God knows what a sixteen year old could do when they are sick, lost and have SUPERPOWERS!!!
What was he going to do. Peter had most likely gone to look for family and friends but the chances of them being there were slim. Poor kid. He had barely anyone and now he had completely been thrown in the deep end.