Fallen Grace (The Grace Series) - M. Lauryl Lewis

I can't summarize this book without giving away too many details about the entire series. I will say Marcy has huge ovaries. She's willing to kill off characters, take chances, and piss off readers. Many romance-heavy zombie books skimp on the blood and guts. The heavy on violence horror books often skimp on character development. Marcy always manages to find the right balance with the Grace series.