His Seat
When Merlin doesn't get a seat at the round table. Camelot's council goes into chaos.
Mycroft Holmes and Harry Watson team up to send John and Sherlock on a case to distract a Sherlock who's been pining after John. And Harry, at least, is determined to get the boys together. Two sets of Holmes & Watson shenanigans ensue. (Johnlock, post-S2 AU)