Double Crossing
Encyclopedia
Double Crossing is a Hardy Boys and Nancy Drew Supermystery novel.

Nancy and George are on a cruise ship, with George being the "social director" of the whole establishment. The two are having fun when suddenly, Nancy realizes of a plot involving the sale of CIA secrets, and a secret agent. Meanwhile, the Hardys are in the ship, going undercover as a photographer and a waiter, to pursue a group of burglars who target wealthy men and women.
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