In Going Postal by Terry Pratchett, postmaster Moist von Lipwig delivers a letter (one of many) that had been sitting in the post office for decades. The letter conveyed the acceptance of a marriage proposal, and after its delivery, the couple reunited and were finally wed.
Write a poem, scene or story in which a long-lost letter is finally received, altering the recipient in some way.
Check this article for some additional prompts.
