Mary Ellen Lyons, an elderly woman living in rural Ireland with her brother Michael, kept a dark secret - that their sister Agnes, who also lived in the same house, had been dead for a year.
Life for the two went on, with Mary even sharing Agnes's bed. The family were extremely religious and lived in an isolated part of Ireland, so much so Michael would never open either sisters room, or even watch the television if a woman was on it.
Mary even forgot when it was that sister Agnes expired: "I have tried to remember when Agnes died but I just can't remember. I remember getting Christmas cards at Christmas 2002 but I cannot remember if Agnes was dead at the time."