Possible Paper Topic?

So, after I finished reading Heart-Shaped Box, I'm still really stuck with the idea of familiars and witchcraft. And since we have another paper conveniently due at the end of the semester, I was thinking about maybe doing some more in depth research on familiars. Jude's dogs played a pretty important role in the book, even though they were these sort of minor animal characters, and I think I could use the idea of Jude's familiars as an opening into researching the sort of witchcraft feel to the events in Heart-Shaped Box. Anybody got any thoughts?