Parents need to know that this is adventure fantasy with danger and some violence, including murder attempts and kidnapping. The author's idea of the future includes a flu outbreak that kills millions and disastrous effects of global warming.
Positive messages:The characters have bouts with meanness, anger, and sadness, but most still mean well. Bad characters face consequences for their actions.
Violence:There is talk about people being killed, an attempt on several lives, and a fight that involves a bleeding nose. There's also kidnapping and some mind control situations.