INITIAL THOUGHTS: Inventive concept, a "reboot" is a child who has died and been resurected into a shell of a human. The longer the kid remains dead, the less human they become. Reboots are trained by HARC as assasins and end up doing the government's dirty work. They usually don't question authority, are stronger and are void of human emotions making them ideal candidates for the job. Wren178 is the most bad ass of all reboots. Dead for over 178 minutes before she came back to life, she's cold and emotionless, that was until Callum, a 22 arrives at the training facilty. When she agrees to train him, everything changes and Wren discovers she just may not be as icey as she thought. 
 Wren is a endearing character. She lead a rough life before she died and its not been a picnic after. She's strong, nearly indestructible, very callous and a rule follower. According to HARC she may be their best reboot. 
 Callum is weak, full of emotion and compassion for others. I'd consider him an underdog, for sure. He clueless to how life as a reboot is supposed to go, constantly challenging authority, causing trouble for himself and feeling so much than other reboots. He's convincing, likeable and has a great sense of humor. Its easy to see why Wren falls for him. 
 World building is decent. This story takes place in Texas. A bad virus has infected the Earth and the government is trying to set a barrier between those who are ill and those still healthy. They created an oranization called HARC to protect and safeguard those who have contracted the virus, with the help of reboots. In a way, a reboot is a government slave. 
 Pacing is fast, action packed and full of nailbitting suspense. There was always something going on in this one, a real page turner. Be prepared to get sucked into this one. The conclusion is somewhat abrupt. It could be considered a cliffhanger, but not a nasty one. I think of it more like how a book with more than one part would conclude before opening to part two. Instead of sectioning this one into parts, the author decided to make part two an entirely seperate novel. I'm looking forward to reading the sequel soon.