From mrspencil: a villain is spotted at a concert
I had thought the concert to be rather enjoyable, but Holmes was apparently unimpressed. As the audience applauded he patted my shoulder and jerked his head behind him, in indication that we should leave swiftly.
"Is everything alright?" I questioned him once we were in a cab home, one he had near sprinted to hail down. "You didn't enjoy it?"
"It was fine," he said shortly. "Shall I drop you home?"
"I suppose so." I hesitated. "Holmes you would tell me if something were wrong? You seem put out by something."
He shifted awkwardly in his seat, wringing his hands. "I simply saw someone I didn't wish to speak with. It is nothing to concern yourself with."
I did not push the subject, but later was talking to Inspector Lestrade who had attended the same concert.
"I did notice a fellow though," he said thoughtfully, once we had finished our discussion of the music. "Could swear he was glaring daggers straight at Mr Holmes."
"Oh? What did he look like?"
"Didn't get a clear look," Lestrade answered. "Tall, thin fellow, looked a bit like an academic although who could really say. I only thought I would mention it because I know Mr Holmes has a tendency to get himself into trouble."
Too true, I thought to myself and bid the inspector adieu. The next day Sherlock Holmes entered my consulting room, and I learned all about the infamous Professor Moriarty.