The clue of the velvet mask

A gang that uses parties as a cover for robberies victimizes a masquerade party Nancy is attending, so the teenage detective switches identities with a friend to solve the case.

Grosset & Dunlap
1997
9780448095301
book
Lexile: 
700

Holdings

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1756635536257524344050970865BPMS120BPMS011253MYSTERY KEE100015825759371742569409
2251586580192512764050970865LIS287T0300027Fic Kee100016101181161610118116
2251587580192512764050970865LIS287T0002056Fic Kee100016101181161610118116
2386669591769023684050970865BLE110BLE0010393F Kee100016377766271736800991
2742831623380723824050970865GMM293GMS0005587FIC KEE100016377825731736800991
2742832623380723824050970865GMM293GMS0013910FIC KEE100016377825731736800991