Sit on my Interface

I am reading "The Strange Case of Dr. Jekyll and Mr. Hyde", after having only read the children's classics version as a kid. It's a short one, and (Fun Fact!) Robert Stevenson wrote it in ten weeks time high on cocaine.

I am behind 2 books in my Goodreads reading challenge and I'm trying to "cheat" by breezing through some short novels. They are still books, are they not? I am looking for book recommendations that do not exceed 150-200 pages. IOW, novella recommendations :)