Reboot by Amy Tintera

Imagine a world where people die and come back to life. It seemed like a good thing in this future society where there was a fear that the human race was dying off. However, people came to fear the "reboots" and humans decided to enslave them and use them to fight battles too dangerous for people to fight. Reboots are known by a number—the number of minutes they were dead before they rebooted. The main character of this book is 178. It's a scary-high number, because it's common knowledge that the higher the number the less human a reboot can be. 178 doesn't is an excellent fighter (and killer) and doesn't feel very human herself until she becomes the trainer for 22, an unusual reboot who hasn't yet learned to give up his humanity. When they find out there may be humans and reboots who want to rebel against the system they find the courage to leave their prison and head off to the slums of Texas.  And yes, they also find some romance along the way. This book was strong on action, especially in the last half of the book. The problem for me was that I didn't fully get invested in the characters. I thought it was a pretty good book but it borrowed a lot from other dystopian books and didn't rise to the level of The Hunger Games or Starters or Unwind, or The 5th Wave, which are some of my favorites. Still recommended for dystopia fans, though. Probably best for 8th grade and up.