Sense Sonnet - Chiller

MisSpell

I knew that the girl was possessed.
Her behavior was just not right.
I looked for a spell that was best,
In a book by a witch of white.
I found one that seemed appropos,
Removing a demon from hell.
I tied up and gagged the girl, so
That I could carry out the spell.
I stabbed her with a twice blessed knife,
And strangled her with holy rope.
I could not bring her back to life.
The book did not offer much hope.

Obviously, the spell went bad.
I had to try. I am her Dad.