Jim has said that he likes to take a story idea, and give it a new coat of paint.  I wanted to start a discussion about which book, movie, tv show ideas you could see Jim using in the Dresden series.
I was thinking he might take the idea of a horcrux idea from the Harry Potter series.  The idea that you can place a piece of your soul into something, giving you an anchor to the mortal world to prevent death.  I think that the blue print could already be there with Mantle's, soulfire, and things like that.  I was thinking that maybe this is how Cowl can defend himself from a death curse.  What do you think?  What idea's do you think Jim might use in the future parts of the series?