Download or read book Hardy Boys 52: the Shattered Helmet written by Franklin W. Dixon and published by Penguin. This book was released on 1973-01-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Danger is the name of the game when the Hardys agree to help their pen pal from Greece, Evan Pandropolos, search for a priceless, ancient Greek helmet. Years ago, Evan’s uncle had loaned it to Hollywood movie company for use in a silent motion picture, but the treasured helmet had been lost. Picking up foes along the way, the young detectives unearth clues that keep them constantly on the move—from their Greek college campus to California and finally to Greece.