Dead as a Dinosaur is the way Dr. Orpheus Preson, known mammologist and author of the bestseller The Days Before Man, ended up. He had claimed that someone was trying to drive him crazy. The police and his family believed he was crazy — crazy enough to stage his own persecution, a persecution that ended in death. In his last days, Dr. Preson had sought out the help of Pam and Jerry North. But after his death, the Norths had to agree that the evidence supported the theory that it had been suicide rather than murder — until another body is found, killed by prehistoric methods. Who cared so much about a bunch of old dinosaur bones that they would go to such extremes? The Norths, determined to unearth the truth, try to make sense of the seeming insanity before it's too late!