My initial, albeit selfish, reaction is to advise not burning the notecards. VN was too important a literary figure to even consider denying the chance to read his last novel, in whatever stage in its production it was in. The, when I put myself in VN's shoes, I think of how upset I would be if my wishes were disregarded. My official stance is something of a happy-medium between the two. I believe that if DN, upon careful consideration, believes that the existing pieces of his father's last manuscript would help to further VN's status in literary history, then he should release them. If, however, he feels that the manuscript, in its current form, would in some way detract from his father's status, then he should destroy them. In short, maintaining his father's reputation should be first and foremost in DN's mind. Though I would be disappointed never to have the chance to read this last work, I will fully respect DN's decision, no matter what it is. The one thing I do know is, I wouldn't want to be in DN's shoes. I wish him the best of luck.