Chapter 1

(COMPLETE) (An Avengers: Endgame fixit)
Peter Parker remembers it all.

Remembers aliens, Titan, Thanos, the stones.

Remembers every atom in his body splitting, and the agony that followed.

Remembers looking up at his mentor's grief-stricken eyes and muttering a small 'I'm sorry' before he was one with the wind.

He was gone.

But now he has the chance to take that all back.

Today, Peter Parker can make a difference.
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Welcome to Endgame 2.0! Aka, what I think should have happened in Endgame. Angst in there, BUT a happy ending, since Marvel has already provided us with the sad one.