Shattered Helmet

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.