BY THE LIGHT OF THE STUDY LAMP - BOOK #1 - CAROLYN KEENE - GUNSTON CLASSICS, - THE DANA GIRLS The Dana Girls was a series of young adult mystery novels produced by the Stratemeyer Syndicate. The title heroines, Jean and Louise Dana, are teenage sisters and amateur detectives who solve mysteries while at the Starhurst School for Girls. By the same author as the Nancy Drew series and the original 25 chapters.