When I occasionally go on and on about Jim Butcher’s “Dresden Files,” which I’ve had a habit of doing for the past 10 years or so, almost invariably, someone will tell me that if I like Butcher I really should read Kim Harrison. So, after years of hearing that, I finally picked up the first book in her Hollows series, “Dead Witch Walking” ($7.99, Harper Voyager).After a genetically-engineered virus carried by tomatoes wipes out a large portion of the human population, the Inderlanders – witches, vampires, werewolves, leprechauns, fairies, pixies, etc. – who are largely unaffected, reveal themselves to the world. They pretty much come to the rescue while humans were being decimated by the virus, and now the humans and the supernaturals are having to learn to co-exist – sort of.