Human error -Sherlock x reader

After sherlock's death, you fall into a deep deep depression and then things happen.....

Sherlock Holmes and The New Detective

A client is waiting outside Sherlock's flat for more than twenty minutes. Mrs.Hudson finally let's the girl in even though Sherlock didn't say anything. When she seems to be at the same brain capacity as Sherlock, or at least smarter than the average bloke, he invites her along on a case. She's the new detective, and...