Michael Cader reminds us in this morning's Publisher's Lunch that tomorrow's the day Oprah Winfrey makes her new book club selection. "The metadata currently on the web is inconsistent," he notes, which is a polite way of saying the Amazon.com listing shows the book's length at 1 page. A suspicious person might think that was a deliberate attempt to throw off GalleyCat readers who've become experts at figuring out her selections before they're announced. But Cader offers another clue: "It's a book for which Penguin also has unabridged audio rights."

As you'll recall, according to our info the book should be not just a "Penguin" paperback, as currently listed on Amazon, but a Plume title. Earlier this month, I considered some likely candidates, but the "unabridged audio rights" clue may render many of them irrelevant. Bookselling This Week says it's not just Plume, but specifically Hudson Street Press. I'm pretty sure it's not the John O'Hurley or Danica McKellar books, but, beyond that, anybody want to make a last-minute guess?