Derek has come a long way since the train accident and a lot has happened. Derek had trouble accepting the fact that the dead were coming back, but now, he has to accept he is apparently one of them!And at the same time, he has to close the wound to stop the Legion from taking over the world.Well, this is the end of this story for Derek. From what I read on the author's website, there might be Derek Stone books and I definitely hope so. This was a great series. It is fast paced, lots of twists and action. I've really enjoyed this series and the last book is just great. I'm wondering now though, what will Abby and Derek be doing? How will they go back to their lives after this, especially Derek? Anyway, it was a great book.