Nancy’s sympathy for adopted twin babies leads her into a surprising mystery during her quest for the children’s real parents.
Carson Drew handles an adoption for the wealthy show-business couple, Johnny and Kitty Blair.
The Blairs invite Nancy and Bess to a celebration, during which the Blairs and the other guests are distracted by the festivities.
Nancy’s sympathy for the adopted twin babies drives her to secure some clothing and the mysterious half of a broken locket that were with the abandoned infants.
Using these clues, the girl sleuth sets forth to discover the whereabouts of the twins’ missing natural parents.