The Dean of Emerson College enlists Nancy to investigate the thefts of a valuable substance being used in a top-secret experiment. But when Nancy discovers that the experiment involves biological mutations, she knows she must find the culprit before the lives of everyone on campus are endangered.
Inglés
The Professor and the Puzzle: Nancy Drew Diaries, Book 15
Mystery on the Menu
Nancy Drew : The Curse
The Hidden Staircase :
Superstitions of "The Scottish Play"
The Search for Cindy Austin
The Bungalow Mystery :
The Clue at Black Creek Farm: Nancy Drew Diaries, Book 9
The Mystery of the Jade Tiger
The Riding Club Crime
The Blue Lady of Coffin Hall
The Music Festival Mystery
Major Discord
The Secret of the Old Clock
The Secret of the Old Clock
The Secret of the Old Clock
Vans & Villains
The Secret of the Old Clock
The Bungalow Mystery :
The Mystery at Lilac Inn :
The Secret Of The Old Clock
The Hidden Staircase :
The Secret of the Old Clock
The Hidden Staircase : Nancy Drew Mystery Stories Book 2
