There was something knocking at my door.
I opened the door,
Nothing was there.
I heard a squawk.
Nothing was there.
I went back to my chamber door.
Knocking, knocking, knocking on my chamber door.
I opened the chamber door,
Jumping up in fright.
I heard the jump squawk once again.
I saw a shadow.
What was it?
It was a raven.