Inside Hong Kong was the infamous Walled City. Strangers were not welcome there. Police hesitated to enter. It was a haven of filth, crime, and sin. Prostitution, pornography, and drug addiction flourished. Jackie Pullinger had grown up believing that if she put her trust in God, He would lead her. When she was twenty years old, God called her to the Walled City. She obeyed. And as she spoke of Jesus Christ, brutal hoods were converted, prostitutes...