User blog comment:Maria Trimble/Death in Supernatural Shows/@comment-24.111.135.80-20130615184201/@comment-24.111.135.80-20130617055730

Peter only bit her to leave a trace of him, a code if you will, that left instructions on what to do and how to do it.

As for the Worm Moon theory, what is it exactly. Cause I don't recall a full moon ever being called a Worm Moon ever