I did not explain what I meant well enough. It's not so much about Tolkien as about the issue of dialogue in narrative, meant to give an example of how a conversation can and should be part of a structure. The problem with many stories is the feeling that the story stops so that two or more characters may interact with each other and/or exchange information. Tolkien - I could have used other artists as examples, but he is one whom everyone is likely to have read - works his dialogues into the broad narrative structure of his story, making them into climaxes by means of such things as the "outriders" of which I spoke, and by giving them a wholly different pattern and sound from the more casual exchanges on the road. You are informed that something different and significant has changed, and instinctively you pay attention. I wanted to bring out the structural place of dialogue, because this would help solve a problem that many writers (very definitely including myself) feel about extended periods of dialogue.