I'm sorry, I don't know the specific 'Green Gulch' story. It could be about a place called Green Gulch. Maybe it's a story of adventure in that area, like someone exploring the gulch, discovering unique plants or animals there.
Since I'm not aware of the 'Green Gulch short story', I can only speculate. Maybe there are explorers as main characters. They come to Green Gulch to find out its secrets. Or it could be an animal character like a fox that is native to Green Gulch and the story is told from its perspective.
The term 'long gone novel' is rather ambiguous. It could be a novel that was written a long time ago and is no longer in print or widely read. Maybe it's a story from a bygone era that had unique themes or writing styles that are no longer common. Without more context, it's hard to say exactly what it's about.