IRENE ADLEROperatic diva. Femme fatale. Adventuress.And one of the world's most intriguing detectives.Before Caleb Carr, Anne Perry, and Laurie R. King, Carole Nelson Douglas gave readers a delightful look into Victoriana with one of the most impressive detective characters: Irene Adler, the only woman ever to have outwitted Sherlock Holmes, in "A Scandal in Bohemia." A charismatic performer and the intellectual equal (some would say superior) the...