Shiloh is most definitely fiction. It has elements of creativity and imagination that aren't based on real events or people. It's a creation of the author's imagination.
It can be considered a true story to some extent. The author might have drawn from real-life experiences or real situations to create the plot and characters in 'Shiloh'.
The climax of 'Shiloh' could vary depending on how you interpret the story's development. It might be when a major conflict reaches its peak or when a significant decision is made by the main character. But this can be subjective.
Well, that's hard to say. Maybe it'll come towards the end of the story when all the loose ends are tied up. But it's really hard to predict without knowing more about the novel's structure.