I remember reading on these fora, quite some time ago, a short story about Vecna's invasion of Sigil. Or rather, how it might have happened, but no one can recall it, safe a few madmen in the gatehouse. It was told, if I remember correctly, by the keepers of the gatehouse and a madman debating if Sigil was ever invaded and taken over by the lord of secrets.
Now, I can't find it anywhere. Does anyone remember what I'm talking about, and where I could find it?
Do you possibly think of the 2e adventure Die Vecna Die! ?
"La la la, I'm a girl, I'm a pretty little girl!"
--Bel the Pit Fiend, Lord of the First (in a quiet hour of privacy)