Review Detail

What worked:
The opening hook describes the mysterious circumstances when Coal is forced to change foster homes. He really likes his foster father Tom but one day Tom starts telling him to run while trying to stab people no one else can see. Coal and readers don’t know anything about his real family as he was left on a doorstep as an infant. This backdrop leads to all kinds of possible explanations when Coal discovers he can turn invisible. Readers can use their imaginations to fill in details and modify their ideas as more information arises. There must be more to Tom’s character than we know and the story of Coal’s parents must eventually be revealed.
It's always interesting to watch how characters respond when they suddenly acquire “superpowers”. Coal escapes a traumatic situation when the police can’t see him hiding right in front of them. He freaks out when his skin becomes invisible and is frightened by the unexplained. Doubt then sets in when he can’t make it happen again and he can’t trust anyone to share his secret. He finally confides in his best friend Door and their curiosity is piqued. This range of emotions is more “realistic” than immediately deciding to become a new superhero. Coal never even considers intentionally using his invisibility because he’s more concerned with understanding it.
A couple of social issues are included in the book. Racism is an underlying issue throughout and police brutality in particular is highlighted after the news of a young girl’s death. Coal has a frightening encounter with a white man and police officers after he’s spotted painting a mural of her. This terror leads to his first episode of invisibility. Coal’s new foster parents, Doc and Jackson McKay, try to balance their understanding for his emotions and freedom while trying to keep him safe from dangerous situations. Moral and ethical questions arise when Coal learns more about genetic engineering and the manipulation of DNA. This would allow scientists to speed up human adaptation in response to the rapidly changing global environment. However, just because something might be possible doesn’t mean it's something that should be done.
What didn’t work as well:
The plot could use a faster pace as most of the real action begins when Coal locates a company that is cutting edge in the field of genetic engineering. It also seems overly convenient when Coal moves in with the McKays even though the parents say it was unexpected. The transition is too smooth so readers will know there’s more to the story. The parents and children go out of their way to support Coal so it’s surprising when it takes so long for him to trust them.
The final verdict:
Readers will empathize with Coal as he struggles with his new ability after being shipped to a new foster family. Strong emotions are embedded in the story as he tries to uncover the mystery of his past and the dangers in his future. I recommend this book for lovers of origin stories, science, and social issues. Give it a shot.