Forensic archeologist Ruth Galloway investigates her most complicated case to date: two people affiliated with a museum housing aboriginal skulls succumb to a mysterious fever that later threatens the life of DCI Harry Nelson.

When Ruth Galloway arrives to supervise the opening of a coffin containing the bones of a medieval bishop, she finds the museum's curator lying dead on the floor. Soon the museum's wealthy owner lies dead in his stables, too.

These two deaths could be from natural causes, but when he is called in to investigate, Nelson isn't convinced, and it is only a matter of time before he and Ruth cross paths once more. When threatening letters come to light, events take an even more sinister turn. But as Ruth's friends become involved, where will her loyalties lie? As her convictions are tested, Ruth and Nelson must discover how Aboriginal skulls, drug smuggling, and the mystery of “The Dreaming” hold the answer to these deaths, as well as the keys to their own survival.