Download or read book Secret Under Pittsburgh written by Jon Klein and published by . This book was released on 2018-10-10 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: It's 1975, and three young boys stumble onto an abandoned mineshaft in the heart of Pittsburgh, Pennsylvania. Follow renowned archaeologist Peter Hawn and the boys, as they deal with a mysterious device, and the men who will kill to keep it their own.