The Clue of the Black Keys
Terry Scott, a young archaeology professor, seeks Nancy’s help in unearthing a secret of antiquity which can only be unlocked by three black keys. While on an archaeological expedition in Mexico, Terry and Dr. Joshua Pitt came across a clue to buried treasure. The clue was a cipher carved on a stone tablet. Before the professor had time to translate the cipher, the tablet disappeared – along with Dr. Pitt! Terry tells Nancy of his suspicions of the Tinos, a Mexican couple posing as scientists who vanished the same night as Dr. Pitt. Nancy and her friends follow a tangled trail of clues that lead to the Florida Keys and finally to Mexico in this suspense-filled story that will thrill readers.
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One of the only two times--the other The Ringmaster's Secret--where Nancy worked case without Bess and George--it was good for once to see others, student Fran Oakes and her cousin Jack Walker have an adventure way Don Cameron did back in the Bungalow Mystery. Interestingly in both instances it was George not available and Bess making no effort to volunteer--in end it was her worry of losing cousin, virtual sister George of Nancy which compelled Bess to drag herself along though she plainly hated it, and would just safely eat.
Review: The Clue of the Black Keys, Nancy Drew Mystery Stories Series #28User Review - Christa - Christianbook.com
I really, really, really liked this one a lot!!! It was very different from the other books and takes place in interesting locations. Read full review