The Evil Seed - Joanne Harris

So this was Harris' debut novel that was out of print until people clamoured and they released it.  Harris herself seems rather on point about the work in her introduction. 

 

I normally love Harris, but not this one.

 

Mortal Love by Elizabeth Hand is somewhat similar and far better. (and no, I don't think there was any plagarism or what not.  The sprig of idea is simiilar, and plots are far different).