Hello dear storyfinders! I'm looking for a deleted Michael/Lucifer cagefic called Bleeding Grace.
It was posted on Tumblr (and perhaps on AO3) but the author, intotheruins, deleted their blog and purged their ao3 account.
I have a link to a reblog of the original post,
https://nicolabarth.tumblr.com/post/160068302112/intotheruins-title-bleeding-grace-ship, which provides the fic's summary and the first line;
Summary: Grace is the only thing that feels real in the Cage.
"It starts with a single golden feather in the depths of hell."
(I can't read the rest, as the "keep reading" link is broken)