One of my favorite authors is Ian Rankin, who launched his own artistic career while studiously not-writing a dissertation on Muriel Spark. Rankin writes about flawed detectives in impossible situations, in Edinburgh, and he cranks out approximately one extravagantly-praised novel per year. Around 2008, Rankin seemed to grow tired of his signature creation, Inspector Rebus, so he went in a new direction. He invented a character, Malcolm Fox, who had little in common with Rebus. Rebus is, famously, a drinker--and he is a guy who struggles with authority; by contrast, Fox has renounced alcohol, and he *is* authority, he watches the cops. Fox made his debut in "The Complaints," in 2009, a novel that won praise from the grand master of European crime fiction, PD James. "The Complaints" refers to Fox's office--he handles and investigates complaints filed about other cops--but it also refers to something broader, more existential: The novel explores things we ...