This gripping mystery, spiked with math clues, follows quirky outcasts Lady Di and Tom Jones as they try to save their woebegone community. In their caravan park called Adjacent, next to the Folsom Energy Plant, people have started to vanish, and no one seems to care. At first the kids barely notice the disappearances - until their beloved maths tutor, Mrs. Clarke, is abducted too. Mrs. Clarke has left them clues to her whereabouts in the form of equations that lead them all over the caravan park, through hidden tunnels under 'Mount Trashmore', and into the Folsom Energy Plant itself, where Lady Di and Tom Jones and a gang of other misfits uncover the sordid truth about what's really happening there. "Readers will be swept up in the fast talk and exciting action". ("Booklist").