There are really some interesting considerations going into this Blood Magic project. Since it has this episodic nature, the project as a whole requires a great deal more pre-planning than I tend to do. Not that I don't plan out my writing; I just tend to do it in my head, and then revise my plan as I write. Fo'Fonas, for instance, began as a single chapter exploring an idea for a magic system I liked, which blossomed into my first, complete novel (it's now in the review process).
You probably don't think about it - I hadn't given it more than cursory consideration - but there is a lot that goes into a book beyond the simple writing of the story. Front and back covers have to be designed. ISBNs have to be purchased. Copyrights have to be obtained. Fonts have to be chosen, and sizes: page sizes, font sizes, margin sizes. Pages have to be numbered, prefaces and acknowledgements have to be written...I could go on.