Baroness Orczy 
Lady Molly Of Scotland Yard [PDF ebook] 

Lady Molly Robertson-Kirk’s fiancee is framed for murder and sent to prison. This is the trigger that turns her into one of the best detectives at Scotland Yard. Whilst solving cases, utilising brain power rather than brawn, she constantly keeps an eye out for clues that will enable her to undo the injustice. This character was ground breaking when introduced and even today presents a model female succeeding in a still largely male dominated world.