I think there may be an arm of fate or a discerning muse who, if a writer has been Good, will keep her from certain cliffs. Both my new books are sequels, of a sort, and were intended to have been written years ago, but set aside for various reasons. When I had the opportunity to finish them, I found that large chunks of both old plotlines were trite, implausible, and in one case historically impossible. I am grateful to whatever anti-muse kept me from writing them as-is all those years ago.
I had to re-read the previous books, of course, and did so with some trepidation, but apparently I was more restrained in those, or possibly had a good editor who said, "Good grief, think again," or words to that effect. For whatever reason, the old ones seemed to me to hold up, although I did want to make the kind of marginal notes that I am in the habit of jotting down for writing students. You know the kind of thing: "Stilted dialog." "Overused analogy." "Can you find a fresher image?" "This sentence has escaped you entirely."
One thing this new venture into old projects has taught me is this: Never throw away that manuscript that no one wanted. You never know when someone will, and if there are excellent reasons why no one wanted it, you will most likely see them now and do something about that. I can't remember how often I thought about tossing those, clogging up the basement shelves in those wonderful sturdy cardboard boxes that typing paper used to come in, just right for a manuscript. I think maybe it was the boxes I didn't want to part with. You can't get them now and I guard my small hoard of them. So here's to the muse that put them on the shelf for my own good, and the goddess of office supplies who whispered in my ear, "You may want those boxes."