The Clue Of The Broken Locket Nancy Drew Series, Book 11.

When Nancy Drew and her friends arrive at Misty Lake, they meet pretty, red-haired Cecily Curtis, who seeks Nancy's help in solving two mysteries. One concerns Cecily's fiancé, Niko Van Dyke, a popular singer who believes that his record company is cheating him of royalty payments. The other invovles a family treasure hidden before the start of the Civil War; Cecily's only clue is half of a gold locket. Nancy's investigations lead her to Pudding...