Great book, written from case notes of a 1979 investigation into the dissapearance of a 16 yr. old genius. Great explanation of technique used to locate missing people, and a great story also. In '79 William Dear had to do things the hard way, no cell phones, no computers, no G.P.S., just good ol' fashon' detective work. A really good book that keeps your interest until the very end, a glimpse into the way law enforcement can be led off track and go nowhere, while a private investigator can go places and do things no cop can. I highly recommend reading this book, as well as other books by William Dear.