One Night with the King is the story of Esther in a dramatised novel form, which I have recently read and enjoyed. It has also been adapted as a feature length film - but that, I did not enjoy. To me it mangled the story and didn't capture the point at all. I think they were trying to make it more dramatic or cinematic. I can't say what it would be like from the point of view of someone who did not know the story of Esther, but it wasn't even faithful to fictionalised novel it was based on, let alone the Biblical account.
But the book was good. Even if it is a fictionalised account with lots of details added, it accomplished this in a way that drew my attention more clearly to some points about the story of Esther in the Bible that I hadn't fully considered before. (As a note, I would probably recommend being completely familiar with the story as the Bible sets it out before reading, so that you don't end up getting confused between what we actually know and what was added for the novel.)
These are some things I thought about - I could write a whole blog post on each, but for now it's just dot points.