The Blemmigan Affair is add-on for Fallen London, a browser-based choose-your-own-adventure game set in "Fallen London", an alternative Victorian London with gothic overtones. The Blemmigan Affair was originally published as an Premium Story and is a seasonal event for the Feast of the Exceptional Rose (Valentines Day), February 2015.

Now available in the Singing Mandrake, on the "The Demi-Monde: Bohemians" Opportunity Card, or directly from the Fate page.