Dear Annie: Fighting my father’s will would unearth a family secret. Is it worth it?

Four siblings grieving their mother discover their father maintained a secret double life for over twenty years. Upon reading the will, they find he updated the document to include one additional special person, revealing a deep family secret. One sibling now questions whether fighting the legal terms of the father's will is worth unearthing the truth. Advice on this complex family matter is provided by Annie Lane in the Dear Annie column.