If you are not familiar with all the hype surrounding this book, just google the title--it is a review in itself!
This is the first of four in the Lorien Legacies series written by an anonymous author (hence the aforementioned hype) already commissioned for a movie.
And it should be: it is fast-paced, bloody, gory, and not-at-all believable.
A group of nine children and their guardians from the planet Lorien are hiding on Earth to stay out of the reaches of the Mogadorians, who have already destroyed the planet Lorien and are now after the planet Earth. They are seeking the nine to kill them, but they must do it in order, hence the problem for Four when he realizes (via a band automatically burned into his ankle) the three are already dead.
Of course there is a girl, an alien-obsessed sidekick, and the town bully. We really want to believe that aliens are among us--this doesn't really help us do that, but it is a lot of fun.
Recommended for grade 7 and up.