Reading "Neverwhere" by Neil Gaiman. It's definitely an interesting story and a good book in general, but the main problem with it is that he doesn't do a good job building the world, Rowling he is not. The details of the world are so... blank? It's hard to imagine the scene or picture exactly what is being "shown" to you, he tells you the story instead of showing you the story (which I'm just not a big fan of). Also, the writing/pacing is a bit off and kinda throws you out of the book sometimes.
Good book and worth a read, but certainly not great in my opinion.