If there was an award for scariest dedication, Chelsea Cain wouldn’t have any competition. Her national bestseller, Heartsick, starts off with: “For Marc Mohan, who loved me even after he read this book”. I had to pause before I started the first chapter. What in the hell was I getting myself into? A pickle, that’s what. I have a bit of a problem here. I am giving this book highest marks and I am about to lavish some serious praise on it, but I am by no means recommending this…