I have a couple propositions. They're really just ideas, but whatev.
A sequel to "The Shape of Fear"
or
An alternate outcome to the same book, but one where Cyn is either saved from the parasite or she finds a way to control it.
I think either of those would ideas would be a great idea, but it's up to you. you book anyway. Heck, it's up to you whether to respond to me at all or even read my message. I just thought I should send these ideas your way in case they interest you.