The premise is simple and predictably comic booky: during her dad's interview with a famed geneticist, fourteen-year old Cassidy suffers an accident that enhances her strength and senses. Shortly after that the scientist is kidnapped. When the scientist's son Emry comes to live with Cassidy's family, the two join together to find Emry's mom.
Each character has their own personality but I found Emry the hardest to wrap my mind around. He is supposed to be mature beyond his years, because of his genius intelligence, but something about him just seems...off. While trying to make him mature but a teenager at the same time, it seems Stokes hasn't quite got a handle on how to write him.
These quibbles aside, I liked the book. I liked it for what was not in it. Angst and romance were in short supply, which I was thankful for. Cassidy loves her family and she isn't bitter or angry towards them. Her and her brother have the regular sibling rivalry but I love the fact Cassidy is smitten with her five-year old brother. Rather than being annoyed by him, she likes it when he smears cookies on his face and just generally likes him, a nice break from the "I hate my family" angst. The family seem a little too clean-cut but they are nice.
Cassidy is well-written and likeable and the main villain is a hoot. The action sequences are fairly well thought out and portrayed well, although a few fights were cut too short, in my opinion, and I would have liked to have seen more feats of strength from Cassidy.
The pacing is fast and the story is enjoyable with likeable characters. I don't know how long the series will go on, and while I may not read every story in the Cassidy chronicles, I'll definitely pick up the sequel. All in all, a nicely executed enjoyable book.