An account of a deadly commuter plane crash that took place in northern Canada in 1984 involving a pilot, a politician, a cop and the criminal he was escorting.

"Night after night, Mackenzie's dreams return her to a memory from before her sister Sabrina's untimely death- a weekend at the family's lakefront campsite, long obscured by a fog of guilt. But when the waking world starts closing in, too - crows stalk her every move around the city; she gets threatening text messages from someone claiming to be Sabrina - Mackenzie knows this is more than she can handle alone. Travelling north to her rural hometown...

"In Alberta, Canada, an eminent paleontologist disappears from a dinosaur dig site, and at the Cambridge Forensic Center, Kay Scarpetta receives a grisly communication that gives her a dreadful reason to suspect this may become her next case. Then, with shocking speed, events begin to unfold. A body recovered from Boston Harbor reveals bizarre trace evidence hinting of a link to other unsolved cases that seem to have nothing in common. Who is behind...