Double Crossing is a Hardy Boys and Nancy Drew Supermystery crossover novel. [1] It was published in 1988 under the Carolyn Keene pseudonym. [2] [3] [4]
Nancy and George are on a cruise ship in the Caribbean, 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.
Franklin W. Dixon is the pen name used by a variety of different authors who were part of a team that wrote The Hardy Boys novels for the Stratemeyer Syndicate. Dixon was also the writer attributed for the Ted Scott Flying Stories series, published by Grosset & Dunlap.
A Question of Guilt is a 1996 Hardy Boys and Nancy Drew Supermystery crossover novel.
A Crime for Christmas is a Hardy Boys and Nancy Drew Supermystery novel published in 1988.
The Last Resort is a Hardy Boys and Nancy Drew Supermystery crossover novel published in 1989.
Process of Elimination is a 1998 young adult mystery novel by Carolyn Keene. It is the final novel of the Nancy Drew and Hardy Boys Supermystery crossover series.
Operation Titanic is a Nancy Drew and Hardy Boys Supermystery crossover novel. It was published in 1998.
Royal Revenge is a Nancy Drew and Hardy Boys Supermystery crossover novel, published in 1997.
Out of Control is a Nancy Drew and the Hardy Boys Supermystery crossover novel written by Carolyn Keene. It was published in 1997.
Secrets of the Nile is a Nancy Drew and Hardy Boys Supermystery crossover novel, published in 1995.
Hollywood Horror is a Nancy Drew and Hardy Boys Supermystery crossover novel, published in 1994.
Passport to Danger is a Nancy Drew and Hardy Boys Supermystery crossover novel. It is the 19th book in the series and was first published in July 1994 by Archway Paperbacks.
Evil in Amsterdam is the 17th book in the Nancy Drew and Hardy Boys Supermystery series by Carolyn Keene and was published by Archway Books in November 1993.
Tropic of Fear is a Nancy Drew and Hardy Boys Supermystery crossover novel, issued under the Carolyn Keene pseudonym. It was published in 1992.
Spies and Lies is a 1992 Nancy Drew and the Hardy Boys Supermystery crossover novel. It was written by Tracey West under the usual pseudonym Carolyn Keene.
Tour of Danger is a Nancy Drew and Hardy Boys Supermystery novel. It was published in 1992.
High Survival is a Nancy Drew and Hardy Boys Supermystery crossover novel, published in 1991.
Best of Enemies is a Nancy Drew and Hardy Boys Supermystery crossover novel, published in 1991.
Mystery Train is a Nancy Drew and Hardy Boys Supermystery crossover novel. It was published in 1990.
Buried in Time is a Nancy Drew and Hardy Boys Supermystery crossover novel published in 1990.