Five-year-old Phoenix Sinclair should have been safe in the care of her own mother. Instead, she was subjected to unimaginable cruelty at the hands of the very people who were supposed to protect her. But what makes this case even more disturbing is what happened after Phoenix was murdered. Her mother continued pretending she was alive, even attempting to pass another little girl off as her daughter. How could a child disappear without anyone realising the truth for so long? Learn more about your ad choices. Visit megaphone.fm/adchoices