When thrust into one of his stories, a timid author must overcome writer’s block and rewrite the narrative in order to save his fictional world and its inhabitants.

I like this one, it is clear and I can get a feeling of what the writer is like and what the action and event is.
I also get curious, how and why is the author thrust into one of his stories? Does his writing change under this pressure? Who will help him and who will be against him?