Tomorrow, the fifth and final installment of For I Could Lift My Finger and Black Out the Sun arrives. It’s do-or-die time for John Black and the guy who calls himself Sol.

So why is this so exciting for me? Because this time, it’s for real. When I wrote the first part of The Oasis of Filth, I was just testing the waters, even fooling around if you will. I didn’t expect many people would read it or care (I was off by a little – since the first book launched, the three parts of the series have...