Prostitutes and animals could no longer satisfy Peter Kürten's sexual deviancy. During a burglary of a local tavern, he stumbled upon a nine-year-old girl asleep in her bed. He strangled her, slashed her throat with a pocket knife, and orgasmed upon hearing her blood drip to the floor.His crimes were halted by World War I and an eight-year prison sentence but he unleashed his urges with a spate of brutal murders in 1929 earning him the nickname "The Düsseldorf Monster". No one was safe. He committed ferocious attacks, sexual assaults and murder against men, women and children. He used blunt objects, sharp implements or his bare hands, before drinking their blood for sexual satisfaction. The Monster Within is a chilling account of Peter Kurten, one of the most terrifying serial killers in true crime history. Ryan Green's riveting narrative draws the reader into the real-live horror experienced by the victims and has all the elements of a classic thriller. CAUTION: This book contains descriptive accounts of abuse, extreme violence and animal cruelty. If you are sensitive to this material, it might be advisable not to read any further.