On Jun 2, 8:45 am, (---MIKE---) wrote:
Something died inside a wall in my finished basement. The smell is
foul. It is not possible to get inside the wall. Is there anything I
can do other than wait for the carcass to dry up? Spraying with
Fabreeze helps for a while.

Speaking from experience I'd rather not have, depending on the size of
the critter carcass, the smell might get far more foul - you may not
think it possible, but it can. There's always a way inside a wall.
What exactly are you up against?

R