TY  - BOOK
AU  - Keene,Carolyn
TI  - The clue of the velvet mask
T2  - Her Nancy Drew mystery stories, 30
AV  - PZ7.K23 Nan, no. 30 1969
U1  - [Fic] 
PY  - 1969///]
CY  - New York
PB  - Grosset & Dunlap
KW  - Mystery and detective stories
N2  - When a gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, the teen-age detective switches identity with her girl friend to solve the case
ER  -