Let's see some more historical stuff on this meme! I love it!
RTYI:
Till We Have Cases by fiorinda_chancellor (WIP, currently at 290k) a whopper of a Bronze Age casefic. Sherlock is the Consulting God and John is a prince; cue hijinks, wine, and (eventually) sex.
SPQR by hoc_voluerunt (100k, WIP but several parts are completed) THE HOLY GRAIL. Meticulously researched, fabulously written Roman AU.
Amor Vincit Omnia by onthewaters (3k) John is a slave. Sherlock buys him. The results might surprise you.
AD 53 by NovaNara (1k) Sherlock is a slave. Mycroft goes to buy his freedom. (Contains absolutely no dubcon!)
Re: Tyrian purple
RTYI:
Till We Have Cases by fiorinda_chancellor (WIP, currently at 290k) a whopper of a Bronze Age casefic. Sherlock is the Consulting God and John is a prince; cue hijinks, wine, and (eventually) sex.
SPQR by hoc_voluerunt (100k, WIP but several parts are completed) THE HOLY GRAIL. Meticulously researched, fabulously written Roman AU.
Amor Vincit Omnia by onthewaters (3k) John is a slave. Sherlock buys him. The results might surprise you.
AD 53 by NovaNara (1k) Sherlock is a slave. Mycroft goes to buy his freedom. (Contains absolutely no dubcon!)
All works on AO3.