I tried again, higher.
Nothing.
My palms were sweating.
Then I noticed something near the baseboard: a small mark, like someone had scratched it repeatedly.
I slipped my finger underneath.
Pushed.
Click.
The panel opened like an old wooden sigh.
The smell hit me immediately.
Dampness.
Mold.
Dust.
And something else.
A chemical scent.
Chlorine.
Like someone was cleaning far too much down there.