- The fic is post-movie and Clint is having a hard time dealing emotionally.
- The Avengers had all moved into the tower, though no one realized that Clint was living there because he moved into the air ducts where he built himself a "nest."
- He ends up spending a lot of time in the shafts above Bruce's lab as it is usually peaceful and calming. Bruce finds out and lets Clint know he doesn't mind through a note. The two eventually end up leaving messages for each other.
- When the other Avengers do find out that Clint has been living in the ventilation system, they're really upset; not for themselves but because it is evident that Clint is not holding up too well.
If anyone knows what fic this is please let me know!
FOUND: On Nesting by snack_size