Dark?

Beware the darkness,
for it has already taken over night.
How foolish were we,
to think we are blinded by light.

A day will come,
where another does not follow.
There won't be a way to wash
out the fear in which you'll wallow.

I'll stand back and watch,
as you all attempt to adapt.
I this cage of Darkness
you'll all be trapt.

People will search,
in vain, to find the key.
Unbeknownest to all,
the keeper is me.