The Clue of the Broken Locket (Nancy Drew Mystery Stories #11) by Carolyn Keene
Writer: Mildred Wirt (1934). Revised By: Harriet Stratemeyer Adams & Grace Grote (1965). Mr Drew has a client Lawrence Baker who owns a summer cottage at Misty Lake. Before Mr Baker leaves to Europe, he rented his place for two weeks to a young woman called Cecily Curtis. The caretaker…