Blood Money Hostage

The kidnapper wanted to send a unique ransom note, so he sliced the message into the stomach of his hostage and pressed a sheet of paper against it.
He pulled the sheet off and…
Damn it. The words were backwards.
So, he flipped her over, and tried again on her back.
He still got a few letters reversed.
The third time, he tried to use her ass, but she was thrashing around a lot, making it hard to get a clean transfer.
Dipping a quill in the blood, he wrote the note by hand.
And she bled to death.
Oops.