I really enjoyed that! Just watching John wander around the castle, and all the mad Holmes activities going on, was fun. Sherlock's reaction to the Bartok - god, yes, I can see that. As well as John freaking out when he saw Sherlock on the roof. I also loved John's instant reaction to Sherlock's father as a threat, and how much he hated, HATED Sherlock's voice coming from that man. I approve of the beat-down. As does Grandmother, apparently. And now I have the Johnlock version of Benedict and Beatrice in my head, and it is marvelous!

I've recced this story over at 221b recs - thanks for the fun!