Divergent by Veronica Roth
This book is mind-blowing. If you like the I Am Number Four series and the Hunger Games series, you will be content with dying after you have read this book. It's that good. In the book, Beatrice lives in a world where there are factions to choose from and she must make her decision whether to stay with her family or follow her instincts. I suggest this book to everyone who likes teen fiction with action.