Patty did not know she was dead at that time , and after Grams faints upon seeing her , Piper is forced to tell her .
They then travel to 1982 when Grams was comforting a 10 - year - old Piper .
Patty did not know Piper was dead at that time , and after Grams faints upon seeing Piper , Piper is forced to tell her .
They then travel to 1982 when Grams was comforting a 10 - year - old Piper .