The Scorch Trials is the sequel to the Maze Runner. Once I started the mystery of the Maze Runner, I knew I would be reading the sequel. Dashner leaves the Maze Runner leaving a lot of unanswered questions and I really just wanted to know the back story of what was happening. I didn't like this book as much as the Maze Runner, in fact I found the Maze Runner to be the best of the 4 books in the series.
The story was still interesting, following the Gladers in life after the Glade. I just found it increasingly violent and depressing. I know people who have really loved this series, it just wasn't for me.