Publishers, readers, booksellers, even critics, acclaim the novel that one can deliciously sink into, forget oneself in, the novel that returns us to the innocence of childhood or the dream of the cartoon, the novel of a thousand confections and no unwanted significance. What becomes harder to find, and lonelier to defend, is the idea of the novel as—in Ford Madox Ford’s words—a “medium of profoundly serious investigation into the human case.