Twelve-year-old Barney Roberts is obsessed with a series of murders. He knows the victims are all boys, just like him. He knows the bodies were found on river banks. And he's sure the killer will strike again soon. But there's something else, a secret he'd rather not know, a secret he is too scared ...

Twelve-year-old Barney Roberts is obsessed with a series of murders. He knows the victims are all boys, just like him. He knows the bodies were found on river banks. And he's sure the killer will strike again soon. But there's something else, a secret he'd rather not know, a secret he is too scared to share...