What do you think of my poem about a girl named Casey?

Question:

What do you think of my poem about a girl named Casey?

This is a poem I made one day in school. Hope you like it!

Casey

There was a girl named Casey
and there was a secret she kept.
The longer she held it in
the more she wept.
The secret she held inside
was one you wouldn't believe.
For there was a star tattoo
under her sleeve.
This was no ordinary star
as everyone thought.
Because on a full moon
it was blood she sought.
Hiding in the shadows,
stalking the night.
She would grab the victim
and give them a fright.
Screaming in agony
and yelling in pain.
Carelessly she drank
enjoying her gain.
The sun begins to rise
and the victim lies dead.
She returns to her home
and goes back to her bed.

* TO BE CONTINUED * Sorry, I didn't have enough space to write the rest. I'll have to put the rest in another question. Please tell me what you thought of this poem so far and I should have the rest of the poem up soon! Thank you for reading! ^.^

Best Answer - Chosen by Asker:

Yeah, that was really interesting. I liked the twist, because when you first start to read it, it doesn't seem like it will really be as mysterious and dark as it turns out to be in the end.