Hey everyone, I am in the midst of finishing revising my first novel. I don't know if this is just me being paranoid or not, but after revising it I feel that the novel is too short. I have an ensemble cast of 5 protagonists that are all featured evenly. I feel that throughout the story their characters change as they need to to become who they are supposed to be at the end. The problem is that I feel the book doesn't have enough middle to it. I feel like even though they are changing throughout the story, the change feels like it is happening too fast. Because there are five characters I feel like the book doesn't spend enough time on each specific character but I'm afraid to just start writing in new scenes for the hell of it when they may not have much to do with the story other than I need to fill space. I would appreciate any ideas, feedback, or experiences from writers that have faced similar challenges. What do I do in this situation, how do I know if its just me or if the book really does need more space in the middle.