The Maze Runner- Boy gets put in a giant maze with several other boys but doesn't remember anything about his past life or why they are there. Must figure out why they are there and find a way out.
This one really starts to get good about half way through, so bear with the beginning...
Book two in the series: The Scorch Trials- Boys are in different situation than first book, but still intense and now that I care about the characters, this one is even better than the first. That is all I will say in the spirit of no spoilers.
I must say now that I am on the third book, The Death Cure, I will probably not be grading too many of your essays until I finish. Sorry, but it is just that good.