Worth reading and very creative. With effortless time travel, Kevin goes back and kills serial killers when they are children so they will not be able to kill the people they kill. But you can't kill the Hitlers; it might have too big of an impact on the future.
What I liked:
-The concept was fascinating.
-Good character development.
-The serial killer children were done well.
-The children were all killed, sort of off camera. So I respected that and was glad.
-It has a very good twist. No details it would spoil it.
What I didn't like:
-There was too much time spent in the police station and it became a little repetitive.
-Hard to believe stuff
a) You time travel with your iPhone or glasses.
b) Somehow, Kevin could pull up data, Instagram, etc., on his iPhone, no matter what year he is in from his parent organization in 2040?
c) He also could get texts over the gaps in time and even talk to his bosses.
Observations:
-It seemed like everyone was shot in the face. Odd.
-Every new science when he arrives somewhere, it is unbelievably Hot or Cold. Unusual.
-Every time he was at a new location and a different year, ready to kill a child, he had a different pistol. Interesting. Where did he get the guns?
-Kevin the hero came from 2040, that just does not seem far enough into the future for this to be possible.
Also:
I have said a lot so far, I could say so much more. You must suspend reality for sure, I have so many questions about time travel and the butterfly effect. The author does address that, but I am not sure it makes sense to save a few people long dead, but messing with the past. Still, an interesting read.
It is a short book and is very worth reading for the concepts.