The clue in the jewel box /
by Carolyn Keene.
- New York : Grosset & Dunlap, c1972, c1943.
- 181 p. : ill. ; 20 cm.
- Nancy Drew mystery stories ; 20 .
- Keene, Carolyn. Nancy Drew mystery stories ; 20. .
Nancy and her friends help a woman search for her missing grandson.