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Carolyn Keene
Carolyn Keene is the pseudonym of the authors of both the Nancy Drew Mystery Stories (and a spin-off called River Heights) and The Dana Girls Mystery Stories, both produced by the Stratemeyer Syndicate.
The Secret in the Dark
Synopsis
Nancy must work fast to save her friend when she discovers that the concert hall hosting the Seattle music competition is the focus of a conspiracy and that Deirdre, a blind violinist in the competition, is in trouble
