A Martian Halloween

What do I do
if he tries to eat me?
I've heard monsters eat
anything they happen to see.

Where is my friend
I was traveling with?
When I tell him my story
he'll think it's a myth.

I hope it's not him
the monster is eating.
We shouldn't have come down here
to see trick or treating.

Now it seems quiet,
I don't hear a sound.
It seems that the monster
is no longer around.