Download or read book Nancy Drew #9: Ghost in the Machinery written by Stefan Petrucha and published by Papercutz. This book was released on 2013-11-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Has Nancy Drew solved the world's energy crisis? On a mission, sponsored by young, rich, and handsome Ralph Credo, Nancy teams up with eccentric scientist Roy Hinkley, to find an amazing high efficiency engine able to operate at an amazing 200 miles per gallon! The experimental engine, mounted on a tank, was part of an experiment during the final days of World War II. There's just one problem, the engine and the tank are haunted. "Ghost In The Machinery" is the first in a series of three Nancy Drew adventures entitled "The High Miles Mystery."