Four people dead, all with symptoms of mercury poisoning. Is it a coincidence when four people die at the same time with the horrible symptoms of mercury poisoning? Young detective Troy Goodhart and forensic specialist Lexi Iona Four don't think so. But what's the connection between the victims? They shared a dreadful death, but they lived in different parts of the country and didn't seem to have anything in common. This is a brilliant book from The Outer Reaches series, introducing a world with two species of humans. Written by award-winning author Malcolm Rose and featuring the sleuthing teenagers, detective Troy Goodhart and forensic specialist Lexi Iona Four, this story includes yet more excitingly gory crimes. Perfect for a teenage reader who wants a great book to get stuck into!