Margret Stewart's family has been ripped apart by a secret government experiment which gave them telekinetic powers. This experiment's success has drawn the attention not only of powerful government forces who want to capture, imprison and use them for their own purposes, but also supernatural powers that see the family as a vital link in the war between good and evil. It is written that they will have a child who will be The Shaker of Worlds. In a chilling and horrifying story that moves between Earth and Purgatory, the family is hunted by a secret government agency called the Gray Department, as well as dangerous supernatural forces sent to kill or seduce them. The fugitives find themselves at the center of the ultimate struggle between the forces of good and evil.