Dear Abby: Should I tell my son the truth about his beloved grandma?

A parent is struggling with their son's desire to write a book about the family's history. The parent has spent decades hiding a painful past involving a mother who was manipulative, selfish, and abusive. While the grandson views his grandmother as beloved, the parent is conflicted about revealing these secrets. Dear Abby provides guidance to the reader on whether to disclose the truth about the abuse suffered from the grandmother to the son.