For air-minded youth, this story which assumes that every member of a family can not only fly but own a private plane, will fulfill all kinds of wishful thinking. Chiefly it is Shelby's story, and the story of the helicopter she championed so staunchly. Her championship had seemed to break things up with Peter Cornell, who was a test pilot to whom speed was all. Army folk, the lot of them, so when she learned that Peter was assigned to High Harrison ranch, she was bursting with curiosity but knew not to ask questions. Then the plot thickens. Cattle have been given up; they are running sheep it seems; there's a long and up to date runway and unexplained buildings. And Pete arrives in a jet plane- and crashes. There's talk of shadows- and Pete, in delirium insists he was struck down. Eventually it takes a close call for Shelby and her dog to solve the mystery- and the military secrets are more or less kept to the end. Plenty of excitement, plenty of air talk- but not as rounded a book as one looks for from Gertrude Mallette.