This volume collects the entire Sandy Steele mystery/adventure series. Included are:<P>1. BLACK TREASURE<BR> Sandy Steele and Quiz spend an action-filled summer in the oil fields of the Southwest. In their search for oil and uranium, they unmask a dangerous masquerader. <P>2. DANGER AT MORMON CROSSING<BR> On a hunting trip in the Lost River section of Idaho, Sandy and Mike ride the rapids, bag a mountain lion, and stumble onto the answer to a hundred-year-old mystery. ...
