This book is based on the the mysterious murder cases which took place in London during the early 1800s.Citizens of London were living a normal and a happy life until one of them was murdered brutally.A series of cold-blooded murders sent waves of shock among the common people.This time a renowned detective named Jenny Richardson was appointed to solve the cases.She , along with Mr.Abberline started investigating the case.Jenny encountered many twists and turns in these cases which she had to solve.Will she be able to nab the killer or becomes one of the victims of the mastermind behind all of this?