A new novel about an underground food community, by the author of Mr. Penumbra´s 24-Hour Bookstore.Lois Clary is a software engineer who gets left with a peculiar sourdough starter. Soon, not only is she eating her own homemade bread, she´s providing loaves daily to her employer´s cafeteria. The company chef urges her to take her product to the farmer´s market-and a whole new world opens up.