It is difficult for an author to get out of a genre once he has firmly ensconced himself in it. Readers at first looked askance at Stephen King when DIFFERENT SEASONS was published. What?! Where are the vampires? No school gyms set on fire?!! Not even a good plague? DIFFERENT SEASONS ultimately gained wide acceptance, of course, thanks to a couple of movies based on tales within that volume. But it was a rough road for a minute or two. It's even worse for other authors. Ask Robert Parker, who will immediately tell you that of all the novels he has written, his favorite is...ALL OUR YESTERDAYS, which has no one named Spenser in it and which, according to Parker, sold abysmally.