I've Just Seen A Face

You didn’t book Sherlock Holmes; he booked you. You didn’t arrange meetings with Sherlock Holmes, he texted you an address and you had better be there on time. Everyone in the fashion world knew how this went. Sherlock picked everything, which clients he worked for, what photographers he used, even the set of the shoot.
So when John got a text from an unknown number that said 221B Baker Street, come at once if convenient. –SH. He knew better than to ignore it.