The chilling sequel to no. 1 bestseller Invisible n n FBI analyst Emmy Dockerys unique ability to uncover the patterns that others miss has brought her an impressive string of arrests. But a new case - unfolding across the country - has left her looking for something which may not exist. n n The victims all appear to have died by accident, and seemingly have nothing in common. But this many deaths cant be a coincidence. Can they? n n Emmys instincts tell her this is the work of a terrifyingly intelligent serial killer - and shes determined to prove it. When her obsession with the crimes raises flags within the FBI, shes in danger of becoming a suspect herself. n n But someone else is watching Dockery. Studying, learning, waiting. Until its the perfect time to strike. n