Have you read/watched The Magicians? I watched the series when it came out on the SyFy network, but I think it’s on Netflix now, and I highly recommend it. It can be dark, which I normally don’t like, but the series does it well.

I have not read the books and from reviews I’ve read, there are some differences between the books and the series (some people were particularly upset about a name change for one of the characters and how an actor/actress doesn’t look similar to how the character was described in the books).