Affiliate Marketing Secrets

I wrote a book earlier this year call ‘In a City Named Joy’ and it is available on Amazon.com. I wanted to know if this was a good summary or not. I would also appreciate it if you could suggest a way to improve it.
When Amy Harris, Morgan Anderson, and Brittany Edwards move to a small hill next to a city named Joy, they find that things may not be as normal as they expect. The women are shocked when the people in the city aren’t as nice as they would have considered for a city with such a name. Brittany stops a man from destroying a super market and Morgan tries to help a man cure his five year old sister. Amy seems to have just been taken along for the ride.In the middle of all of this a
scientist is trying to make himself famous by creating an invention to kill the people on death row.
When this is tried out on a young woman named Grace, who has an unusual habit of killing people with their worst fears, things go wrong. Amy, Morgan, and Brittany end up having to save the city with the help of two men that they met in the city and the Immortal who insists on helping even though Immortals tend to think highly of themselves because they can’t die.