It is 1910 - Maia, orphaned at 13, travels from England to start a new life with distant relatives in Manaus, hundreds of miles up the Amazon. She is very unhappy with her exceptionally bizarre new family but befriends Finn, a mysterious English boy who lives with the local Indians and shares her passion for the jungle.
When a woman's body is found in a North London flat clutching a bloodstained sliver of X-ray, DI Thorne discovers that the victim's mother had herself been murdered fifteen years before by the infamous serial killer Raymond Garvey. When more bodies and more fragments of X-ray are discovered, a horrifying picture emerges: a killer is targeting the children of Garvey's victims...