A favorite riddle of mine

[Mandy The Bunny]

I'm going to say one of my favorite riddles and I want you all to guess the answer.
Here it is:
Cannot be seen. Cannot be felt. Cannot be heard. Cannot be smelt.
It hides behind trees and under holes. Empty holes it fills. It follows in
and follows after. What am I?

 

[Misskermie]

Air?

 

[Mandy The Bunny]

Nope.

 

[Misskermie]

ok, then is it...

Nothing?

 

[Mandy The Bunny]

Nope. Guess again.

 

[Misskermie]

MICRO-ORGANISMS?!?!?

 

[Mandy The Bunny]

Give up?

 

[Mandy The Bunny]

Well?

 

[Sgt Floyd]

darkness

 

[Mandy The Bunny]

darkness

Your right! The Answer is The Dark! I got that riddle out
of The Hobbit! Congrats!