Of course there's pressure, and it's still there with every book. Each one is harder to write than the last, basically because you're always trying to write a better book. You won't always succeed, of course, but that has to be what you're shooting for.
I am trying to give the best performance possible in 400 pages. I want readers to be scared; I want them to be moved. Entertainment doesn't necessarily mean something trivial, but it does mean people wanting to get to the end of a book.