A short read, written in the style you'd expect of the time period, but honestly so compelling. I almost don't know why. The character is just fascinating, I guess, and the premise is one I keep coming back to think about in my life. It reminds me of Jekyll and Hyde for all of those reasons, not to mention the theme of good versus evil and appearances versus reality in/of the self. I think everyone should read at least one well-written book that fictionalizes this kind of self examination- it makes it real and applicable for the reader while maintaining a fantastical plot that can do nothing less than draw the reader to the finish.