I'm sorry to overstep the bounds of this comm by advertising fanfic that belongs to a different fandom, Warhorses of Letters. Perhaps there is enough overlap in members of both these Napoleonic-War era fandoms to justify this decision. I can but hope.
Title:
And They Lived Happily Ever AfterFandom: Warhorses of Letters
Pairing: Copenhagen/Marengo
Rating: PG
Word Count: 2K
Summary: A final exchange of letters between Copenhagen and Marengo. An alternate bracket and happy exclamation point end-bracket ending to the series. Not compliant with the canon final episode.
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And They Lived Happily Ever After on AO3 kiss kiss hoofprint smiley-face