I have found the greatest fanfiction of all time

Obā-san · 2013-04-21 01:55:48

The Road to Deva

In which Quintus and Dumnorix (who is OBVIOUSLY not dead) pay a visit to Sherlock Holmes, who has been unceremoniously and without explanation dropped into Roman Britain.

Takes place in the gap in the North American "Green Book" (around stage 24, perhaps?) after Quintus and Dumnorix are overtaken by Salvius' soldiers and before Quintus arrives in Deva.

http://archiveofourown.org/works/68867