"Two weeks ago," began the park ranger, "Your son was driving on route 77 which goes through the Porcupine Mountains on his way home from a medical convention. There's a monster cliff that runs alongside it. He called me up to tell me that he had run off the road and was stuck on the edge." Mrs. Harper gasped and looked at her son. "For heaven's sake, Jim, haven't you learned how to drive safely yet?" Fred stopped her from continuing. "He swerved to miss an animal. At any rate, by the time I got there, his car was gone, so we thought he was dead. But, the next morning the police went out to search for him in a helicopter, just to make sure. Well, needless to say, they found him alive on a ledge jutting out from the cliff wall. But he was, well, damaged somewhat."