You are Beauty in this retelling of the classic story. Something is amiss in the Beast's castle when you return after an absence, and your actions on exploring the castle (and discovering it as player of course) lead to a potential resolution of the Beast's condition.
The game is extremely well crafted. The writing is relatively sparse yet evocative. The puzzles are clearly set up, with logical and mostly satisfying solutions. While some solutions seemed more straightforward than others, in all cases they were "fair": none of the elements necessary for the answer were hidden. The "goto" command was convenient (although the punctuation did occasionally seem to go awry when moving through the castle) and the "think about" hint system was intellectually pleasing, tapping in to the narrator's thoughts to become hints.
In the end, however, I have to agree with other reviewers that I felt somewhat let down by the final resolution of the story. The mechanics of the retelling of the story are cleverly thought out and satisfying (Spoiler - click to show)(summoning via bells, contracts), but my investment in the outcome was not repaid by its emotional impact. This is of course a personal reaction. I found the ending of the author's Mask of Pytho much more satisfying - maybe I'm an incurable romantic although that's not how I normally think I approach IF.
Access to the source code is a nice touch. The author clearly likes bells and I enjoyed her work here. Recommended.