Just over three years ago, I was commissioned to undertake a spot of guerilla advertising to promote the third season of Sherlock, that premiered on New Year's Day in 2014. The end of the last season saw Sherlock jump off the top of St Bartholomew's Hospital, in the episode 'The Reichenbach Fall'.
Ahead of the season finale of @bbcone Sherlock on Sunday, I've written about a project I undertook for the show.











