"They come from the dark..." That phrase has haunted Gryphon Blake for thirty-four years. He had convinced himself it was only in his head; then he learns it has also haunted many others. All of whom are now either sick or dead. Is a mutated virus the cause of the rapidly climbing death toll or something else? Callie Summers, a supposed psychic and another haunted by the phrase, says Gryphon is the key. The man of science finds all his beliefs and convictions being tested. Can he figure out what is really happening before he loses everything?