This was quite the chilling story with the virus called the Tox changing and killing the girls of Raxter and their fight for survival, not only against the virus, but also against those on the outside of their small island. It was fascinating to me to read about the changes that the virus was making to the girls and the wildlife and the woods on the island. I wish there had been more explanation about how the virus came to be, rather than the quick blurb at the end. I hope that there is another book written too because this book was good but kind of leaves you hanging and I want to know more about what happens to Hetty, Reese, and Byatt. They lived in a harsh world and I hope that things turn out better for them sooner or later.