This book is worth a read whether you're in middle school or if you're a full grown adult. This is the first in a series of 5 books and by far my favorite of any of them. The storyline is the most original I've ever read and definitely leaves you craving more. This is very hard to put down but can easily be read in one sitting if you have the time. Otherwise, I'd say to expect 3 days or so if you're just casually reading it.