When you open City of Bohane, you’re opening not just a novel, but a Fodor’s guide to a metropolis—an eerie, vibrant, murderous domain with its own grittily mythic lore and customs and its own apocalyptic Celtic slang. The Irish novelist Kevin Barry provides a story, too, of course—a saga of gang warfare and ruthless hoodlums vying for power and love—and he infuses it (...)