I don't know. I have only read the short story. And I don't know exactly why I couldn't bring myself to read the novel. It could be a fear of being disappointed, or in other words disbelief in that this story could be just as powerful in form of a novel. The short story is so intense... Another reason could be that I may not want to relive through this once more.
It will not for you. I'm sure.though it would be a hard journey for a non-native