Why is a wealthy sportsman so frightened by the serpent design on a mysterious balloon that he begs Frank and Joe Hardy to protect him? And who stole the ancient life-size chess king which is to be presented to the winner of the world chess championship? Targets of diabolical enemies, Frank and Joe find a clue that leads them across the Pacific to Hong Kong to help the police smash an international criminal organization.
Age - 8+
Author - Franklin W. Dixon
Publisher - Grosset & Dunlap
Format - Hardback
Pages - 192
Dimensions - 12.7 x 1.8 x 19.25 cm