I'm glad you liked the ending. I don't know what is missing in the fluency since the beginning ended with a knock at the door, and my ending began with the same character opening the door. In terms of plot it doesn't get more fluent and seamless than that.

But did you mean in terms of style perhaps? I definitely didn't make an attempt to keep the style the same, and I endeavored to make the tone more sinister and frightening. If you're willing to give more specific feedback I'd like to hear it. I can always learn more!