in the absence of air

https://archiveofourown.org/works/80068966 by megonagall410 On Peter’s sixth birthday, Tony Stark builds his son a telescope and writes him a note. The sky makes more sense if you work from what you know outward - find something familiar first, then go further. That’s generally good advice for most things. Four months later, he leaves for Afghanistan. He means to be back in two weeks. He isn’t. A story in four parts, about what happens to light when the source goes out - and what happens when it turns out the source didn’t. Words: 5428, Chapters: 1/35, Language: English Series: Part 1 of What Didn’t Go Out Fandoms: Spider-Man (Tom Holland Movies), Iron Man (Movies), The Avengers (Marvel Movies) Rating: Teen And Up Audiences Warnings: Graphic Depictions Of Violence Categories: F/M, Gen Characters: Tony Stark, Cassandra Gillespie, Pepper Potts, Happy Hogan, James “Rhodey” Rhodes, Obadiah Stane, Peter Parker, Mary Parker (Marvel), Richard Parker (Marvel), Aunt May Parker (Marvel), Natasha Romanov (Marvel), Steve Rogers, James “Bucky” Barnes, Ned Leeds Relationships: Peter Parker & Tony Stark, Cassandra Gillespie & Tony Stark, Pepper Potts/Tony Stark, Aunt May Parker & Peter Parker, Steve Rogers & Tony Stark, Peter Parker & Natasha Romanov & Tony Stark Additional Tags: Alternate Universe - Canon Divergence, Tom Holland Spider-Man, Tony Stark Secret Child, Peter Parker is Tony Stark’s Biological Child, Pre-Canon, Canon-Typical Violence, Fix-It for Movie: Captain America: Civil War (2016), longfic, Slow Build, Estrangement, Father - Son Estrangement, Eventual Reconciliation, Found Family, Grief/Mourning, Complicated Grief, Minor Character Death, Canonical Character Death, Childhood Trauma, Emotional Hurt/Comfort, Hurt/Comfort, Angst, Angst with a Happy Ending, It Gets Worse Before It Gets Better, they are trying their best, Bad Parenting (but trying), Good Intentions, Bad Execution, Guilt, complicated feelings, Protective Tony Stark, Emotionally Repressed Tony Stark, Peter Parker Needs a Hug, Tony Stark Needs a Hug, they both get hugs, eventually, Trust Issues, Peter Parker Has Trust Issues, Tony Stark kidnapping arc, Obadiah Stane Being an Asshole, Obadiah Stane Gets What He Deserves, Hydra (Marvel), Winter Soldier Bucky Barnes, Spider-Man Secret Identity, Near Death, Fake Character Death, Presumed Dead, Custody Battle, Ensemble Cast, POV Multiple, Character Study, long and slow, Worth It read it on AO3 at https://archiveofourown.org/works/80068966