With J. K. Rowling’s new novel, “The Casual Vacancy,” we are firmly in Muggle-land — about as far from the enchanted world of Harry Potter as we can get. There is no magic in this book — in terms of wizarding or in terms of narrative sorcery. Instead, this novel for adults is filled with a variety of people like Harry’s aunt and uncle, Petunia and Vernon Dursley: self-absorbed, small-minded, snobbish and judgmental folks, whose stories neither engage nor transport us.

It’s easy to understand why Ms. Rowling wanted to try something totally different after spending a decade and a half inventing and complicating the fantasy world that Harry and company inhabited, and one can only admire her gumption in facing up to the overwhelming expectations created by the global phenomenon that was Harry Potter. Unfortunately, the real-life world she has limned in these pages is so willfully banal, so depressingly clichéd that “The Casual Vacancy” is not only disappointing — it’s dull. The novel — which takes place in the tiny, fictional English village of Pagford, and chronicles the political and personal fallout created by the sudden death of a member of the parish council named Barry Fairbrother — reads like an odd mash-up of a dark soap opera like “Peyton Place” with one of those very British Barbara Pym novels, depicting small-town, circumscribed lives.